#linuxcnc | Logs for 2015-03-04

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[00:07:57] <MarkusBec> PCW: ok it works e100 ethernet card seems to be not a good choice
[00:08:56] <furrywolf> why can't I find some low-power n-channel fets in a dip package? ought to be plenty for driving small loads...
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[00:10:29] <furrywolf> I could just use three discrete fets.
[00:12:53] <renesis> dip is deader than spock
[00:13:14] <renesis> why cant you just to-220?
[00:14:20] <furrywolf> because I'm switching a few dozen ma? :P
[00:14:26] <furrywolf> i.e. completely overkill.
[00:14:46] <renesis> to-92 then
[00:15:13] <furrywolf> which is also dead...
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[00:16:21] <renesis> basically thru hole is dead, but to-220 and to-92 fets are commodity stuff, dip fet is a bit specialized
[00:16:30] <renesis> soic fets happen a lot
[00:16:45] <furrywolf> I was hoping for a hex driver chip, so I could but both spindles in one chip and have it nice and neat.
[00:17:44] <furrywolf> a 74hc05 that was a bit beefier and let me hook the outputs to 12v would be perfect. heh.
[00:21:30] <furrywolf> my slot sensors have ttl-compatible outputs, while my breakout board wants me to pull down its internal 10v supply and reasonably low pullup resistors.
[00:22:03] <renesis> http://www.digikey.com/product-detail/en/CD4009UBE/296-2030-5-ND/67237
[00:22:08] <renesis> you cant use that?
[00:23:04] <furrywolf> you say dip is dead... 4000 series dip is deader. lol
[00:23:25] <renesis> they have 2000 of them in stock
[00:24:14] <furrywolf> those aren't open drain output, though
[00:24:57] <renesis> they sink 24mA and source 1.5mA
[00:25:21] <furrywolf> right, I don't want to source.
[00:25:39] <furrywolf> I'll just use discrete fets...
[00:25:48] <renesis> i think thats a good idea
[00:26:53] <furrywolf> http://www.ebay.com/itm/20pcs-BS270-400mA-60V-N-Channel-Enhancement-Mode-FET-/121575857572 looks like the cheapest non-smd fets I can find.
[00:27:07] <Jymmm> http://www.bbc.com/news/uk-31711446
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[00:32:28] <PCW> asah: with absolute encoder I would just adjust offset till the motor runs at the same speed in both directions at a fixed BLDC voltage setting
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[00:33:43] <PCW> MarkusBec, with e100 you may have to get ethtool and turn off rx irq coalescing
[00:34:30] <PCW> sudo ethtool -C ethX rx-usecs 0
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[00:36:24] <MarkusBec> ok
[00:36:39] <PCW> Nick001-shop I dont know offhand of any Bridgeport specific instructions though it should be easier than a servo retrofit
[00:36:41] <PCW> (I expect the original stepmotors/drives are rather slow though)
[00:36:44] <MarkusBec> hmm 50000 jitter with the buildbot kernel
[00:37:01] <PCW> what hardware?
[00:37:07] <MarkusBec> j1900
[00:38:04] <PCW> yeah thats possible 3.18.7 is better (at least max Ethernet jitter is noticeably better)
[00:39:22] <MarkusBec> for 3.18.7 I have to build my own kernel?
[00:39:30] <PCW> stock kernel should be fine at 1 KHz servo thread. Preemt-RT 3.18.7 is fine on a J1800 at 2 KHz so J1900 should be similar
[00:40:15] <PCW> if you are running step/dir or velocity mode servos, 1 KHz servo thread should be fine
[00:40:39] <MarkusBec> I need a base thread
[00:40:54] <PCW> no base thread is possible
[00:41:07] <PCW> why do yo need a base thread?
[00:41:10] <MarkusBec> hm
[00:41:36] <MarkusBec> https://github.com/bjj/2x_laser/tree/5i25
[00:41:45] <MarkusBec> I would like to use this
[00:42:01] <MarkusBec> at the moment I used it with a 6i25
[00:43:46] <PCW> still not sure why you need a base thread
[00:45:10] <MarkusBec> ah
[00:45:23] <MarkusBec> ok :)
[00:45:41] <MarkusBec> its not used :)
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[00:46:21] <furrywolf> PCW: how would I connect my spindle encoder to one of your boards? my current breakout board has on-board pull-ups and I'll be using open-drain outputs. just want to make sure I'm not building something I might have to redesign later. :)
[00:47:30] <PCW> Our encoder inputs are similar (when in TTL mode) 2K pullup to 5V
[00:47:57] <PCW> 1.65V threshold
[00:47:58] <furrywolf> ok, so I won't need to reengineer later. good.
[00:50:25] <furrywolf> can I wire the ttl-compatible outputs straight to your board? hrmm
[00:50:40] <furrywolf> if so, I might just not bother wiring spindle encoder now...
[00:52:29] <PCW> Thats a daughterboard input you _can_ wire TTL signals directly to the
[00:52:31] <PCW> FPGA card inputs but one slip with 12 or 24V and its all over
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[00:53:22] <furrywolf> the sensors require regulated 5v, so if there's 12 or 24 coming out of them, something is wrong. :)
[00:53:35] <PCW> (encoder input are safe to +-25V momentarily)
[00:54:11] <PCW> the FPGA inputs are safe from -.6 to +8 or so
[00:54:52] <furrywolf> even if you have built-in pullups, unless they're really stiff, I can probably just wire the sensors right to them...
[00:54:56] <PCW> you can also use a parallel port breakout with the DB25 style FPGA cards
[00:56:17] <PCW> (like the 5i25/6i25/7i80DB/7i92)
[00:56:25] <furrywolf> I was thinking a 7i76e. I just can't afford one.
[00:57:22] <PCW> you could use a 7i92 plus your own breakout unless you have a toolchanger or something, a 7I76 or 7I76E is probably overkill
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[00:58:29] <furrywolf> it's a lathe/mill combo machine with two of everything
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[01:00:40] <LeelooMinai> Hmm, so do you people have shielded cables for spindles?
[01:01:02] <MarkusBec> yes
[01:01:12] <furrywolf> I do not, but I have regular capacitor start/run motors, no VFDs putting out lots of thd...
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[01:01:56] <LeelooMinai> I am not sure if I should get normal 4-wire or insist on finding one with shield.
[01:02:10] <PCW> with VFDs, think 350V squarewaves
[01:03:00] <LeelooMinai> Right, I would think it's a good idea, but for some reason automationdirect has only unshielded
[01:03:16] <LeelooMinai> Which made me think if people don't use them or something
[01:03:25] <furrywolf> do you have a VFD, or is this a regular mains-powered motor?
[01:03:43] <LeelooMinai> I am just ordering 1HP VFD from there
[01:03:58] <PCW> also consider the almost unlimited ground bumping current of 350V squarewaves into stray cable/motor capacitance
[01:04:10] <LeelooMinai> I guess I will search for the cable in other places
[01:04:58] <LeelooMinai> Yes, I have shielded cables for steppers
[01:05:16] <furrywolf> you can get shielded cable on ebay, or from industrial suppliers... I got some igus chainflex and it's quite nice.
[01:05:23] <LeelooMinai> But nothing left for the spindle
[01:06:06] <LeelooMinai> I looked just now briefly, but most of them are unshielded
[01:08:05] <LeelooMinai> Damn audiophile speaker wires pop up everywhere:)
[01:08:51] <furrywolf> you need /4, right? /3 is much easier to find locally... (computer power cords, air conditioner cords, etc)
[01:09:24] <LeelooMinai> Yes, 4
[01:10:08] <LeelooMinai> I wonder if one of those "armored" wires could be considered shielded... It has a metal armor that is conductive - so maybe to some extent?
[01:10:24] <LeelooMinai> Assuming I connect it to ground that is
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[01:10:53] <furrywolf> yes, they're probably pretty well shielded. they're not, however, very flexible.
[01:11:57] <LeelooMinai> Right, I probably want some decent flexibility as the spindle moves
[01:12:44] * LeelooMinai notes "Do not use Romex wire"
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[01:13:37] <furrywolf> http://www.ebay.com/itm/10ft-Increment-New-Olflex-12-4-Orange-Flexible-VFD-Servo-Cable-600V-701204-/191514241925 that looks nice and heavy-duty.
[01:14:25] <LeelooMinai> $64 though and with silly Canadian dolar standing, that would be above $80
[01:14:46] <LeelooMinai> Kind of expensive for 10 feet:)
[01:16:07] <furrywolf> hrmm, everything on ebay.ca seems to cost more than it should.
[01:17:16] <LeelooMinai> Hmm, the automationdirect guys sell the software to program those drives separatelly. Only $9 it seems, but still a bit lame
[01:17:36] <furrywolf> and if I select canada only, no search has any results.
[01:18:33] <jdh> surely it is available elsewhere
[01:18:39] <LeelooMinai> But works only on Windows.. so I guess it would be awkward to use it from Linuxcnc
[01:18:48] * furrywolf concludes canada has no industry
[01:18:51] <LeelooMinai> Linuxcnc machine that is
[01:19:32] <LeelooMinai> But it spawned Justin Beiber - that has to count for something
[01:21:04] <furrywolf> that seems like a good reason to nuke canada.
[01:21:20] <LeelooMinai> O, I take it back - they have free download, the CD is $9
[01:23:33] <furrywolf> bbl, time for work again
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[01:26:20] <Tom_itx> PCW did you test eth on j1800 / 1900?
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[01:33:05] <MacGalempsy> reading through the integrator manual, I see this line about cycle time, saying the display will sleep between polls. what are polls?
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[01:33:41] <LeelooMinai> It usually means something requesting data at some intervals.
[01:34:37] <LeelooMinai> Polling would be requesting data from some device, while interrupt-driven would be device signalling that it has data available - two methods.
[01:35:44] <MacGalempsy> I notice that when using PNCconf that variable is left out of the ini file, would it be better to keep it out?
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[01:51:02] <PCW> Tom_itx: yes
[01:53:00] <PCW> J1800 is good for 1 KHz with stock kernel 2Khz with newer 3.18.7 kernel (tested with 7I76e though all Ethernet cards are basically the same)
[01:54:27] <CaptHindsight> http://www.ebay.com/itm/271675811549 144" x 48" cnc router $3500 or best
[01:58:04] <PCW> No Z?
[01:59:06] <Jymmm> PCW: Z http://i.ebayimg.com/00/s/MTE5OFgxNjAw/z/LAkAAOSwQJhUbL0i/$_57.JPG
[01:59:09] <CaptHindsight> http://i.ebayimg.com/00/s/MTE5OFgxNjAw/z/LAkAAOSwQJhUbL0i/$_57.JPG it's got one but maybe they don't like Z or are trying to keep it quiet :)
[01:59:47] <Jymmm> belt Y
[01:59:52] <renesis> wtf timing belt
[02:00:05] <CaptHindsight> yeah, kinda weeny
[02:00:21] <Jymmm> Not my first choice, but does work
[02:00:24] <renesis> prob doesnt have a linear encoder?
[02:00:33] <renesis> nice envelope, tho
[02:00:35] <CaptHindsight> all the axis are belt driven!
[02:00:41] <renesis> jezus fuck
[02:00:46] <Tom_itx> any comments on rosewill pc cases compared to say apex...
[02:00:46] <CaptHindsight> http://www.ebay.com/itm/271675811549
[02:01:11] <renesis> rosewill is just branded china CM stuff
[02:01:27] <renesis> kind of a gamble, but ive gotten good shit from them
[02:01:28] <PCW> Z is pneumatic?
[02:01:46] <zeeshan> toastydeath: http://books.sae.org/b-966/
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[02:02:31] <renesis> i would trust rosewill more than other random china parts, i had one of their 'high end' atx psu, worked well never fucked up
[02:02:52] <Tom_itx> i've been happy with my apex
[02:02:57] <Tom_itx> they look similar
[02:02:57] <renesis> hard a rosewill multi card reader just give up one day
[02:03:06] <renesis> *had
[02:04:24] <Tom_itx> i assume that asrock Q1900 has thumb boot option
[02:05:13] <renesis> arent apex pretty high end?
[02:05:24] <renesis> like, lian-li level stuff
[02:05:34] <Tom_itx> i dunno, it's about 40 bux
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[02:05:45] <Tom_itx> about what i gave for my mini itx one
[02:05:53] <Tom_itx> 300w psu
[02:06:07] <Tom_itx> plenty for that asrock board
[02:06:08] <renesis> i dont trust psu that ship with cases
[02:06:37] <Tom_itx> i've lost more addon ones than stock ones
[02:06:46] <renesis> im fine with a rosewill 80+ rated psu, i wouldnt be confortable with a psu shipped in a rosewill case
[02:07:26] <Tom_itx> i think i'll stick with apex for the same price
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[02:08:19] <renesis> they have a city of industry office, you can go troll them if it fucks up
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[02:11:43] <Jymmm> http://7online.com/pets/meet-the-hulk-a-173-lb-pit-bull/513062/
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[02:16:34] <zeeshan> https://www.youtube.com/watch?v=KWhrfoTLx7w
[02:16:37] <zeeshan> running this baby at school
[02:16:38] <zeeshan> :D
[02:16:46] <jdh> http://www.ebay.com/itm/251796295774
[02:17:24] <LeelooMinai> ...
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[02:17:52] <PCW> Tom_itx if you mean will it boot from USB sure (thats how I installed Ubuntu and also how i check the parallel port with wheezy)
[02:18:33] <Tom_itx> ok i want the size of the itx but i think i'll get the micro atx
[02:18:36] <MacGalempsy> zeeshan: pic of the product?
[02:18:48] <zeeshan> i got distracted, dont have any
[02:18:51] <zeeshan> will take some more videos tomorrow
[02:19:32] <MacGalempsy> lol. everyone gets caught up in the awesomeness of the motion then forgets about the product
[02:19:37] <zeeshan> haha
[02:19:41] <zeeshan> nah some students came
[02:19:44] <zeeshan> and dragged me away
[02:19:45] <zeeshan> :/
[02:19:59] <MacGalempsy> you are a professor?
[02:20:02] <zeeshan> no
[02:20:03] <zeeshan> ta
[02:20:22] <MacGalempsy> grad student ta?
[02:20:27] <zeeshan> ya
[02:20:37] <MacGalempsy> when will you graduate?
[02:21:02] <zeeshan> next year for my masters
[02:21:19] <MacGalempsy> actually, the more appropriate question for grad students is when will you get the degree. (personal experience)
[02:21:24] <zeeshan> im contemplating doing phd, but too tired of school
[02:21:34] <zeeshan> did 3 years of college, 4 years undergrad, now 2 years masters
[02:21:35] <zeeshan> tired :-)
[02:21:43] <zeeshan> 4 more years for phd is too much
[02:21:56] <Tom_itx> what you gonna do with all that smarts now?
[02:22:03] <MacGalempsy> heheh. after 12 years nickle and diming my way through college, I felt it was time to start working
[02:22:05] <zeeshan> sit and do nothin
[02:22:09] <MacGalempsy> lol
[02:22:27] <zeeshan> i feel like if i do phd
[02:22:29] <zeeshan> ill limit myself
[02:22:30] <zeeshan> a lot
[02:22:33] <zeeshan> to a certain field
[02:22:43] <zeeshan> and forget all my important mech eng knowledge
[02:22:50] <MacGalempsy> they say to me, "You have a masters, you must be smart." my reply is usually, " I was too stupid to quit"
[02:22:50] <zeeshan> thats the main reason stopping me
[02:22:55] <zeeshan> pay is ok for phd
[02:23:05] <zeeshan> haha
[02:23:17] <zeeshan> masters is a good thing, if youre doing it in something good
[02:23:34] <CaptHindsight> just write "vocational school start student" on the job apps
[02:23:38] <zeeshan> im gaining a lot of knowledge in machining and metal forming
[02:23:47] <zeeshan> that i didnt get to learn much in detail in undergrad
[02:23:49] <zeeshan> so its good
[02:23:58] <CaptHindsight> star/start
[02:24:29] <zeeshan> MacGalempsy: what was your thesis
[02:24:45] <CaptHindsight> milling, sawing, drilling machinering specialist
[02:25:03] <MacGalempsy> http://books.google.com/books/about/A_Hydrogeologic_and_Water_quality_Evalua.html?id=_v6CPgAACAAJ
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[02:25:20] <MacGalempsy> I didnt know they made it into a book. lol
[02:25:38] <CaptHindsight> saw the movie? :)
[02:25:38] * zeeshan had to look up hydrogeology
[02:25:50] <MacGalempsy> CaptHindsight: I wish!
[02:26:11] <zeeshan> geology is a cool area
[02:26:30] <MacGalempsy> basically, I sampled about 60 locations, and ran every chemical attribute you could think about, then characterized an area with the results
[02:26:33] <zeeshan> and i also like it has real applications
[02:26:34] <LeelooMinai> zeeshan: Did you buy that shielded vfd cable you wre looking for?
[02:26:42] <zeeshan> LeelooMinai: i ran non shielded
[02:26:48] <zeeshan> but most of my stuff is digital differential signals
[02:27:12] <LeelooMinai> zeeshan: I mean for motor/spindle driving - the power cable
[02:27:13] <zeeshan> and vfds are in another box
[02:27:20] <zeeshan> yea thats what im talking about
[02:27:42] <LeelooMinai> Hmm... digital signals?
[02:27:47] <zeeshan> MacGalempsy: you illegally dumped chemicals!
[02:27:54] <zeeshan> and found traces of it in other spots? :D
[02:28:13] <MacGalempsy> nothing was illegal!
[02:28:34] <zeeshan> LeelooMinai: im a visual person
[02:28:36] <MacGalempsy> we performed some dye trace studies
[02:28:40] <zeeshan> https://www.flickr.com/photos/128539016@N05/16242463226/
[02:28:48] <zeeshan> if you look at the sectio nwhere the vfds are
[02:28:55] <MacGalempsy> good story, you know flourocene dye? its the green color in antifreeze
[02:29:01] <zeeshan> the only signal is a modbus signal going to the vfds
[02:29:14] <zeeshan> and the analog signal to the servo drives is shielded
[02:29:25] <zeeshan> so theres really nothing in that box that is suspectible to noise issues
[02:29:34] <MacGalempsy> it is an inert chemical that doesnt break down unless in sunlight.
[02:29:41] <zeeshan> which means , no point in running vfd cable
[02:29:46] <zeeshan> shielded
[02:29:55] <LeelooMinai> zeeshan: Yes, well, I mean VFD <-> motor/spindle cable
[02:30:06] <CaptHindsight> MacGalempsy: how far from the source were you able to trace it?
[02:30:11] <MacGalempsy> one day I was preparing some charcoal packets that we collected from a trace and spilled some on my pants
[02:30:20] <zeeshan> so how much do you pour in
[02:30:21] <zeeshan> of this dye?
[02:30:26] <MacGalempsy> washed that shit out like 5 times until it disappeared
[02:31:46] <MacGalempsy> then a few months later I was at a strip club and was getting a lap dance, but the stripper was like 1ft off me, she kept looking at my pants and wouldnt give the service she was paid for. then I looked down and that flouroscene stain looked like the largest load you ever seen under blacklight
[02:32:24] <zeeshan> LOL
[02:32:29] <zeeshan> nice!
[02:32:33] <MacGalempsy> worst part was no refund!!!
[02:33:29] <MacGalempsy> so we never got dye back from our tests because the flow system was so complex it must have ended up out of the study area
[02:33:58] <zeeshan> is it supposed to make its way to ground water?
[02:34:07] <zeeshan> cant you use like floating probes
[02:34:08] <zeeshan> with gps
[02:34:14] <zeeshan> but iguess this was a while ago :P
[02:34:36] <MacGalempsy> no to perform a dye trace, you go to a place where groundwater sinks into the ground, like a sinkhole
[02:35:27] <MacGalempsy> you dump in a lot of inert dye, increase the salinity, or some kind of tracer, then with dye you go to all the springs, seeps, etc. and put carbon packets
[02:35:30] <zeeshan> wait
[02:35:35] <zeeshan> water sinks in a sink hole
[02:36:08] <MacGalempsy> in limestone, that is why a sink hole is there, because the rock dissolves and is flushed out the bottom
[02:36:10] <zeeshan> http://www.securefsi.com/images/sinkholefaq/sinkhole-formation.jpg
[02:36:22] <zeeshan> xcrazy
[02:36:33] <MacGalempsy> yeah, that is a good image
[02:37:03] <zeeshan> limestone
[02:37:11] <zeeshan> is the rock thats made from organic stuff
[02:37:20] <zeeshan> getting crushed by pressure and heated
[02:37:21] <zeeshan> yea?
[02:37:22] <MacGalempsy> you time the removal and replacement of the carbon packets, then analyze the packets under blacklight
[02:37:26] <zeeshan> powdery stuff
[02:37:56] <MacGalempsy> limestone is typically precipated from atmospheric CO2 in water due to pressure changes
[02:38:20] <MacGalempsy> Limestone is (Ca,Mg)CO3
[02:38:53] <MacGalempsy> dissolved in H2O it breaks down to Ca+2 and HCO3-
[02:39:15] <zeeshan> ca+ sounds delicious
[02:39:18] <zeeshan> 2
[02:39:22] <zeeshan> tums is so good
[02:39:30] <zeeshan> im messing around
[02:39:35] <zeeshan> anything ionic is prolly bad for you
[02:39:35] <zeeshan> :)
[02:39:37] <MacGalempsy> That is calcium bicarbonate ;P
[02:40:16] <zeeshan> hey
[02:40:18] <zeeshan> do alluvial fans
[02:40:24] <zeeshan> always contain gold?
[02:40:38] <MacGalempsy> sure, probably the best to mine.
[02:40:39] <zeeshan> in areas where there is known to be gold
[02:40:53] <MacGalempsy> easiest anyways because they can be sorted
[02:40:53] <zeeshan> now the q is
[02:41:09] <zeeshan> will only ancient alluvial fans contain gold
[02:41:11] <zeeshan> or even modern ones
[02:41:21] <MacGalempsy> there is a platinum mine in siberia that is an alluvial deposit with thumb size nuggets
[02:41:27] <zeeshan> holy cow
[02:41:40] <MacGalempsy> contents are based on the sourcing material
[02:42:05] <MacGalempsy> if you eroded a gold bearing rock, the gold will be in the alluvial fan
[02:42:09] <zeeshan> so you need to look at where the stream flowed
[02:42:20] <zeeshan> and analyze what minerals it contians
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[02:42:32] <MacGalempsy> a stream would be called a fluvial deposit
[02:43:37] <MacGalempsy> zeeshan: finding where the old stream flowed is the best place to look
[02:43:49] <MacGalempsy> that is how we work in the oil and gas market, too
[02:44:26] <zeeshan> look for gold! :P
[02:44:29] <zeeshan> not black gold
[02:47:00] <zeeshan> MacGalempsy: you think in this day and age
[02:47:08] <zeeshan> all the hot spots for rare metals are alrewady found?
[02:47:18] <zeeshan> i know greenland is a big hotspot
[02:47:24] <MacGalempsy> not a chance. think of all that stuff that is under jungle.
[02:47:27] <zeeshan> cause as the glacier receeds, theyre getting access
[02:47:44] <zeeshan> yea
[02:47:47] <zeeshan> but arent there companies
[02:47:49] <zeeshan> that just fly over that stuff
[02:47:56] <zeeshan> map the areas, and know "yea this is garbage"
[02:47:58] <zeeshan> "move on"
[02:48:01] <zeeshan> all day long :)
[02:48:13] <MacGalempsy> if they even waste their time to fly over
[02:48:49] <zeeshan> http://www.hamarisite.com/wp-content/uploads/2013/11/Divak-Diamond-Mine-Canada.jpg
[02:48:50] <MacGalempsy> most mining seems to be done with sample counts
[02:48:50] <zeeshan> like
[02:48:56] <zeeshan> how do you find a random spot like this
[02:49:17] <zeeshan> its in the middle of no where.
[02:49:18] <MacGalempsy> random luck!
[02:49:40] <zeeshan> well shit dude
[02:49:46] <zeeshan> i forgot the name of that formation
[02:49:51] <MacGalempsy> you send out punk grad students to collect samples and run analysis,
[02:49:54] <zeeshan> its like an expanding chimney stack
[02:49:56] <zeeshan> from lava coming up
[02:49:59] <zeeshan> that forms the diamonds
[02:50:03] <MacGalempsy> komadite
[02:50:13] <MacGalempsy> kommadeite
[02:50:34] <MacGalempsy> something like that, basically an extinct volcano that had a high organic content in the magma
[02:50:36] <zeeshan> komberlite
[02:50:38] <zeeshan> close
[02:50:39] <zeeshan> haha
[02:50:42] <MacGalempsy> kimberlite
[02:50:46] <zeeshan> ah
[02:50:49] <zeeshan> dude
[02:50:52] <georgenz> Hey PCW, thanks a lot for your help, the z is much better after taking out the P in the drive. It still looks the same on the HALscope but the noise and vibration is night and day better.. legend!
[02:50:54] <zeeshan> like finding that looks next to impossible
[02:51:05] <zeeshan> youd have ltitle to no signs visually on the surface
[02:51:16] <zeeshan> youd need some sort of wave based imaging technique
[02:51:27] <zeeshan> so if that pipe is found using an imaging technique
[02:51:32] <MacGalempsy> you would probably want to know the larger scale geology and put it in a historical context
[02:51:34] <zeeshan> then wouldnt it be just as easy to fly over random spots and map
[02:52:16] <MacGalempsy> I heard about a canadian grad student who was finding small diamonds in stream samples, continued to the work and found the source. she is supposedly a billionaire now
[02:52:16] <zeeshan> those pipes seem like random though
[02:52:18] <zeeshan> without much history
[02:52:27] <zeeshan> its an under ground phenomena
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[02:52:35] <zeeshan> lava finds a weak spot
[02:52:37] <zeeshan> and shoots up
[02:52:42] <zeeshan> but doesnt penetrate through the surface
[02:52:54] <zeeshan> well not that i think about it
[02:53:01] <MacGalempsy> lava is gone by then, those are down below the volcanic necks
[02:53:09] <zeeshan> maybe all volcanos that are dormatint should have those pipes
[02:53:36] <zeeshan> MacGalempsy: thats crazy about the grad student
[02:53:55] <zeeshan> the stuff interests me enough to use mech eng somehow to make equipment for it
[02:53:58] <MacGalempsy> yeah. awesome huh?
[02:54:00] <zeeshan> for prospectingt
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[02:54:50] <MacGalempsy> brb
[02:54:56] * furrywolf thinks one of these days debeers will no longer run a cartel, and the price of diamonds will plummet.
[02:55:22] <zeeshan> furrywolf: that would be sweet
[02:55:31] <zeeshan> then we would have cheaper cutting tools!
[02:55:31] <zeeshan> :D
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[02:55:44] <zeeshan> i was watching some pvd cutting tools
[02:55:49] <zeeshan> they eat aluminum like its a joke
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[02:56:48] <zeeshan> http://photographyunderpressure.com/wp-content/uploads/2012/01/IMG_1608.jpg
[02:56:49] <zeeshan> jdh
[02:56:53] <zeeshan> would you dive in that stuff
[02:56:56] <zeeshan> that looks like scary shit!
[02:57:44] <jdh> looks cool
[02:58:21] <jdh> eagles nest is kind of like that. mostly a straightish drop down to debris cone at 130ft
[02:58:33] <zeeshan> looks dangerous :p
[02:59:03] <furrywolf> looks remarkably pleasant as dives go.
[02:59:40] <furrywolf> think about the divers patching holes in sunken oil tankers, diving in spent fuel pools,...
[02:59:51] <jdh> doesn't look like most .us caves
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[03:00:26] <MacGalempsy> btw...diamonds are junk. no a real man has an Alexandrite
[03:00:48] <MacGalempsy> or how about a red emerald?
[03:00:55] <zeeshan> hahja
[03:00:59] <zeeshan> arent those suppoed to be green
[03:01:13] <MacGalempsy> normally yes/
[03:01:21] * furrywolf has no jewelry, and no plans to get any
[03:01:30] <zeeshan> to be honest, this might sound dumb
[03:01:45] <MacGalempsy> but in one spot in SW Utah they exist and for 1ct is like 10K
[03:01:45] <zeeshan> but i was amazed to find out that msot of these fancy jewels
[03:01:54] <zeeshan> are just a special combination of different metals
[03:02:06] <zeeshan> mixed with the right hand of the periodic table
[03:02:09] <MacGalempsy> the proper term is Trace Metal
[03:02:46] <zeeshan> google says red emerald is a form of bixibite
[03:02:47] <zeeshan> or whatever
[03:03:01] <zeeshan> but its just Be3Al2(SiO3)6
[03:03:07] <MacGalempsy> yeah, bixbite is the scientific name
[03:03:15] <zeeshan> all those elements arent rare :P
[03:03:27] <MacGalempsy> no, but in that combo they are
[03:03:33] <zeeshan> yes
[03:03:49] <MacGalempsy> bixbite is the one I want to prospect for on dirt bikes this summer
[03:03:52] <zeeshan> you're paying for the combination
[03:03:57] <zeeshan> when you pay the high price
[03:03:59] <zeeshan> is what im trying to get at :P
[03:04:13] <zeeshan> MacGalempsy: where do those exist?
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[03:04:15] <zeeshan> what regions
[03:04:18] <MacGalempsy> SW Utah
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[03:04:31] <zeeshan> ignore my dumbness
[03:04:33] <zeeshan> but why utah
[03:04:35] <furrywolf> I think once the diamond cartels start to lose their control, artificial diamonds will greatly grow in popularity and fall in cost... my understanding is the actual production process isn't that expensive at all.
[03:04:36] <zeeshan> why not toronto, canada
[03:04:44] <zeeshan> what makes utah have em and not toronto canada
[03:04:58] <zeeshan> furrywolf: what!
[03:05:03] <zeeshan> its a time consuming process
[03:05:12] <MacGalempsy> not sure the exact reason
[03:05:25] <zeeshan> MacGalempsy: like do they do a surface scan
[03:05:32] <zeeshan> of the elements in the ground
[03:05:39] <zeeshan> surface/subsurface
[03:05:47] <furrywolf> it's a piece of equipment that could be mass-produced for about the cost of a single diamond out of it. even if it takes two weeks, and has a 25% success rate, it'll pay for itself in a couple months.
[03:05:52] <zeeshan> i think of the world as a big blob of metal
[03:05:55] <MacGalempsy> no, like look at a bunch of places on google earth, then get on dirt bikes and ride like hell to the locations and check them out
[03:05:57] <zeeshan> its certainly not isotropic
[03:06:04] <furrywolf> and that's two weeks of unattended just-sitting-there, not requiring an operator.
[03:06:09] <zeeshan> yes you have certain alpha and beta phases
[03:06:16] <zeeshan> but the majority of it should still have all the elements
[03:06:26] <zeeshan> MacGalempsy: rofl
[03:06:43] <zeeshan> im still waiting on my gun license
[03:06:50] <zeeshan> before i can go deep into the woods
[03:07:08] <zeeshan> dont want to be a bear's dinner
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[03:07:17] <furrywolf> eww, you live somewhere that has licenses.
[03:07:41] <MacGalempsy> furrywolf: right?
[03:08:10] <MacGalempsy> my buddy craig said that about canada
[03:08:16] <MacGalempsy> shotgun with slugs
[03:08:46] <PetefromTn_> http://knoxville.craigslist.org/tls/4914176172.html pretty cool little box
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[03:09:01] <MacGalempsy> zeeshan: you should get this http://www.magnumresearch.com/firearms/magnum-research-desert-eagle-357-magnum-titanium-gold.asp
[03:09:10] <MacGalempsy> but in 50 cal
[03:09:17] <zeeshan> are you being racist
[03:09:18] <zeeshan> rofl
[03:09:32] <MacGalempsy> no, its the coolest
[03:09:37] <PetefromTn_> I am actually looking into a nice Mossberg 590 A1
[03:09:38] <zeeshan> lol thats like a gansgeter gun
[03:10:08] <zeeshan> i honestly wanted a rifle
[03:10:08] <MacGalempsy> im sure if you got a home invader, you would make the news
[03:10:17] <zeeshan> but then my buddy told me, by the time im done pulling out the rifle
[03:10:21] <zeeshan> the bear will already be eating me
[03:10:30] <zeeshan> and a sawed off shotgun is illegal here
[03:10:48] <MacGalempsy> so dont saw it off, just get the shortest barrel that is legal
[03:11:06] <PetefromTn_> http://www.mossberg.com/assets/scripts/timthumb.php?w=625&zc=0&src=http://www.mossberg.com/sites/default/files/1392322270/%2351417_590A1_Magpul_Fluted18.png
[03:11:13] <zeeshan> i think 8-1/2" is the shortest
[03:11:27] <MacGalempsy> I think 8.5 is illegal
[03:11:32] <MacGalempsy> that basically is a sawed off\
[03:11:49] <zeeshan> that'd be nice
[03:11:51] <zeeshan> you should send a warning shot
[03:11:55] <MacGalempsy> PetefromTn_: black is bad
[03:11:58] <zeeshan> when the bear is far away
[03:12:04] <zeeshan> and if its within 20 feet of you
[03:12:07] <zeeshan> you can finish him off
[03:12:07] <PetefromTn_> I like that magpul one..
[03:12:19] <adam3999_> magpul stuff on a shotgun still seems odd but it is growing on me
[03:12:57] <PetefromTn_> that stock is very adjustable and the cocking forend has the ridges on both ends so it is harder for your hands to slip off..
[03:13:00] <zeeshan> http://globalnews.ca/news/365045/sawing-off-a-shotgun-can-mean-serious-prison-time-but-loophole-allows-new-shotguns-with-8-5-inch-barrels/
[03:13:04] <zeeshan> nice this article says its good !: P
[03:13:48] <zeeshan> im not a big fan of guns
[03:13:50] <adam3999_> pete if you can find a cheap beat up rem 870 you can also get it totally refurbished by wilson combat
[03:14:01] <zeeshan> but they do serve a good purpose in the bush
[03:14:05] <PetefromTn_> yeah I know but I don't really like the 870
[03:14:38] <Crom_> I prefer Mossberg 500's 870's are OK.. to much maintenance though
[03:14:39] <adam3999_> 590 is the way to go then
[03:14:41] <MacGalempsy> i got an 870 and would rather get a maritime mossburg than waste the money on rebuilding
[03:15:06] <PetefromTn_> my grandfather had one years ago and I did not like the location of the cocking release and the trigger guard is really tight..
[03:15:11] <furrywolf> http://en.wikipedia.org/wiki/File:Bars2.jpg those machines aren't that large, and they produce a 5-6 karat diamond in 100 hours.
[03:15:33] <zeeshan> they also cost a lot :P
[03:15:47] <zeeshan> and you need a diamond to begin with
[03:15:56] <zeeshan> to grow an artificial one out of it
[03:15:58] <zeeshan> and its a hit and miss sometimes
[03:16:09] <zeeshan> its like 50/50 chance afterr that much time, that you will get a diamond
[03:16:09] <zeeshan> or not
[03:16:20] <zeeshan> (saw this in a documentary)
[03:16:20] <zeeshan> :)
[03:16:22] <MacGalempsy> http://en.wikipedia.org/wiki/Kondyor_Massif
[03:16:31] <furrywolf> they only cost that much because they're special one-off machines. china could turn them out in bulk.
[03:16:37] <MacGalempsy> this is what i was talking about
[03:16:37] <zeeshan> id eat that nugget
[03:16:39] <zeeshan> that looks delcisiou
[03:16:54] <MacGalempsy> you might break your teeth
[03:17:14] <zeeshan> that looks like
[03:17:18] <zeeshan> a comet hit it
[03:17:24] <zeeshan> or a meteor i mean
[03:17:28] <furrywolf> that design also uses minimal carbide, mostly using steel.
[03:18:23] <adam3999_> anyone here have much experience with the mesa boards that are ethernet attached? looks like you can get a 7i76E instead of the 5/6i25 and 7i76
[03:18:24] <MacGalempsy> just think of the big a$$ nuggets that would be at the head of that drainage
[03:18:26] <furrywolf> there is no reason for it to cost more than a similarly-sized machine tool.
[03:18:45] <adam3999_> naturally the 7i76E is only $10 cheaper than the parallel port package deal...
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[03:21:55] <alex4nder> adam3999_: I went with the 7i76E for a new build, because I don't mind the lumps of new tech, and I have more boxes with ethernet than open pcie slots
[03:23:03] * furrywolf wants one, but they require money
[03:23:15] <furrywolf> (a 7i76e, not a diamond press)
[03:24:32] <MacGalempsy> linuxcnc diamond press?
[03:25:48] <adam3999_> diamond press that runs linuxcnc driven by a 7i76E
[03:25:49] <adam3999_> CHECKMATE
[03:25:50] <adam3999_> ha
[03:26:10] <MacGalempsy> ha!
[03:26:31] <adam3999_> is the linuxcnc support for rt ethernet devices mature?
[03:26:59] <adam3999_> i would imagine most everyone uses some type of parport setup instead
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[03:29:20] <Crom_> inkscape taking forever.. got it to output a file.. toolsize is totally off though and scale is ALL wrong
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[03:32:26] <MarkusBec> adam3999_: I started a projekt with a 7i92
[03:33:18] <MarkusBec> the docu is strate forward
[03:33:41] <MarkusBec> not
[03:37:28] <adam3999_> have you had good luck with it?
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[04:08:22] <MarkusBec> adam3999_: it works
[04:08:37] <MarkusBec> but it need some work
[04:10:30] <adam3999_> gotcha
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[04:21:59] <zeeshan> guess what my friends
[04:22:10] <zeeshan> backlash in the fixed block is eliminated!
[04:22:20] <zeeshan> im getting GOOD movement now on X for the lathe!!
[04:22:25] <zeeshan> no more of that random nonsense
[04:22:35] <zeeshan> and connor you were right, that dust boot gives false impression.
[04:22:49] <zeeshan> there was 12 thou freeplay without boot
[04:22:59] <zeeshan> i shimmed to 15 thou (3 thou preload)
[04:23:05] <zeeshan> and put back boot, and its good now
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[04:26:17] <Connor> zeeshan: Nice. between the bearings ??
[04:26:22] <zeeshan> yes
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[04:26:29] <zeeshan> i took the bearing completely apart
[04:26:31] <zeeshan> to se how it functions
[04:26:36] <zeeshan> the big gap is the front for sure.
[04:26:56] <Connor> your brave. :)
[04:27:07] <zeeshan> well its just like 1 thou press
[04:27:09] <zeeshan> over the ridge
[04:27:14] <Connor> They're not easy to take apart and put back together..
[04:27:16] <zeeshan> and the balls are in a plastic cage
[04:27:23] <Connor> At least for me.. I don't have a press.
[04:27:26] <zeeshan> ah
[04:27:46] <zeeshan> since i fucked up my z axis double nut
[04:27:51] <zeeshan> by dropping all the balls out
[04:27:58] <zeeshan> im gonna spend an hour now trying to load the balls lol
[04:28:42] <Connor> Tips: use grease to hold the balls.. try to load them all in without the screw in place using the grease to hold them.. then tread it on.
[04:29:10] <zeeshan> yea i use vaseline
[04:29:20] <zeeshan> the problem is im trying to do this on the machine
[04:29:21] <Connor> IF you have a screw with a FLAT end.. you can use it to load the balls in too. by loading each one and turning the screw to lock it in place.
[04:29:29] <zeeshan> without removing the Z axis ball screw
[04:29:33] <Connor> ICK
[04:29:38] <zeeshan> so im not vertical
[04:29:42] <zeeshan> making it a pain in the ass to load.
[04:29:54] <Connor> an Hour? I bet it will take you 4
[04:30:00] <zeeshan> haha prolly
[04:31:47] <zeeshan> f it
[04:31:54] <zeeshan> ill disassemble the entire screw
[04:32:06] <zeeshan> connor, you know the spacer between the double nut
[04:32:14] <Connor> yes.
[04:32:17] <zeeshan> is there anyway to adjust the preload ?
[04:32:50] <Connor> Only by grinding it..
[04:33:05] <zeeshan> wouldnt that remove preload?
[04:33:11] <tjtr33> plate it
[04:33:25] <Connor> You said adjust.. you didn't say which way. :)
[04:33:32] <zeeshan> hahaha
[04:34:58] <zeeshan> be back in 4 hours
[04:34:59] <zeeshan> :-]]
[04:35:03] <MacGalempsy> laters
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[05:35:09] <Crom_> makiiiiiiiiiii in Algerian font in AL for a vape company
[05:35:27] <Crom_> s/iiiiiiii/stencil/
[05:37:12] <Crom_> taking font turning it into path and then editing the letters to be stencils
[05:37:37] <Crom_> I think itll be easier once we get a laser going to do it with the laser
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[06:01:08] <archivist> Crom_, how about truetype tracer with a stencil font http://timeguy.com/cradek/truetype
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[06:46:42] <adam3999_> hey guys, i posted a note on the forum with my parport issue hoping to reach a wider audience. any help would be appreciated greatly: http://linuxcnc.org/index.php/english/forum/18-computer/28929-no-input-signals-w-asrock-q1900m-onboard-parport
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[07:54:43] <Deejay> moin
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[08:24:18] <MacGalempsy> Hi Deejay :)
[08:25:48] <archivist> so Deckel machines are often regarded as one of the best, how come in the collection of manuals I got yesterday they are the dirtiest
[08:30:52] <MacGalempsy> dirty as in fecal coliforms or oil
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[08:33:03] <MacGalempsy> one would be toilet reading and the other would be requires a lot of work
[08:33:40] <archivist> oily black as in used a hell of a lot
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[08:49:05] <archivist> Deckel pr0n http://www.dialog5.com/officialmachinephotos.htm
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[09:00:41] <MacGalempsy> well teckle my deckle
[09:02:24] <MacGalempsy> bbiab
[09:07:49] <zeeshan> man this is confusing me
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[09:08:08] <zeeshan> im testing out my cnmg inserts
[09:08:09] <zeeshan> vs ccmt
[09:08:17] <zeeshan> tried it on steel, stainless, aluminum
[09:08:28] <archivist> you're confused! what do you think we are
[09:08:48] <zeeshan> aluminum is somewhat dull with the cnmg insert
[09:09:07] <zeeshan> stainless and steel both have a rough finiish
[09:09:07] <archivist> al needs sharp and the right lube
[09:09:30] <zeeshan> you can see tiny pieces of metal embedded in the finished surface
[09:09:33] <archivist> work hardening for stainless and steel
[09:09:37] <zeeshan> when i use ccmt insert using the same cut parameters
[09:09:42] <zeeshan> i get an amazingly shiny surface
[09:09:53] <zeeshan> in all 3 materials
[09:09:59] <archivist> so you learn geometry matters
[09:10:12] <zeeshan> why is the negative rake tooling being a pain
[09:10:19] <zeeshan> i know theres more cutting forces
[09:10:23] <zeeshan> whats flexing?
[09:10:31] <archivist> negative is only for roughing
[09:10:52] <zeeshan> ive seen some videos where peop-le are using cnmg
[09:10:55] <zeeshan> and they get spectacular finishes
[09:11:07] <zeeshan> but they're bigger lathes
[09:11:09] <archivist> dont expect shiny except on perhaps brass with negative
[09:11:40] <zeeshan> i feel like something is loose in the lathe :/
[09:11:43] <archivist> depth of cut is probably your error
[09:11:56] <zeeshan> no
[09:11:58] <zeeshan> im, running 500 sfm
[09:12:02] <zeeshan> 30 thou doc
[09:12:04] <archivist> negative needs to be under the skin
[09:12:06] <zeeshan> and .006 ipr
[09:12:11] <zeeshan> thats the spec on the insert
[09:12:12] <zeeshan> for both
[09:12:34] <zeeshan> even if i reduce to .005 doc
[09:12:36] <zeeshan> its no good
[09:13:07] <archivist> flexible toy lathes need not apply for hard work too
[09:13:19] <zeeshan> its a 1000 lb lathe
[09:13:22] <zeeshan> it should take it! :P
[09:13:39] <zeeshan> im gonna try eliminating the compound slide
[09:13:42] <zeeshan> maybe its moving
[09:14:05] <zeeshan> i mean if the lathe is flexing
[09:14:11] <zeeshan> then i should be able to put a dial indicator on the base
[09:14:12] <zeeshan> and see it flex?
[09:15:02] <archivist> I was shocked at the amount of flex when first told how to see it
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[09:15:23] <zeeshan> how do you see it
[09:17:17] <archivist> put a bar in the spindle, a dti down the bed somewhere lean on headstock or bed or wherever
[09:18:38] <zeeshan> whats the point of the bar
[09:18:51] <zeeshan> oh plunger of dti is on the bar
[09:18:57] <zeeshan> how long of a bar
[09:19:39] <archivist> long enough to show spring
[09:20:09] <zeeshan> i wonder if bolting a 1" plate
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[09:20:13] <zeeshan> at the base of the lathe
[09:20:14] <zeeshan> is worth it
[09:20:16] <zeeshan> to reinforce it
[09:20:24] <archivist> I had about 4 thou spring
[09:20:40] <archivist> is the lathe on a wooden bench
[09:20:44] <zeeshan> no
[09:20:53] <zeeshan> its sitting on 2 cabinets
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[09:21:45] <archivist> separate?
[09:21:48] <zeeshan> yes
[09:22:03] <archivist> ouch, bolted?
[09:22:08] <zeeshan> yes
[09:23:42] <zeeshan> to be honest with you
[09:23:43] <archivist> little/no added stiffness from the mounting then, a bit like my first attempt, I was getting a taper, went to a machine rebuilding place, got educated
[09:23:45] <zeeshan> i remember a while back
[09:23:48] <zeeshan> seeing my compound flex
[09:26:05] <zeeshan> will work on it one thing at a time :)
[09:26:26] <zeeshan> i shoulda bought that monarch lathe! :P
[09:26:40] <archivist> yes you should
[09:26:49] <zeeshan> the only thing that sucks about it
[09:26:53] <zeeshan> is its max speed is like 1000 rpm
[09:27:23] <archivist> fast enough for a mans metal
[09:27:25] <zeeshan> haha
[09:27:30] <zeeshan> what i need is a mikron cnc lathe!
[09:27:43] <zeeshan> after seeing how good a real cnc mill is
[09:27:50] <zeeshan> i dont even wanna bother around with this shitty 12x36t
[09:29:02] <archivist> you are learning why good is also big
[09:29:50] <zeeshan> i was doing 20 ipm cuts
[09:29:52] <zeeshan> in steel on the mill
[09:29:55] <zeeshan> was fun
[09:31:14] <archivist> I think the importance of machine flex is lost on many people
[09:31:52] <zeeshan> yup
[09:32:03] <zeeshan> im gonna have to make this lathe work for now
[09:32:12] <zeeshan> i got the x-axis backlash down to 0.0003"
[09:32:24] <zeeshan> and now its making reasonable parts diameter wise
[09:32:40] <zeeshan> the z-axis is still 0.002" , still trying to figure out if its the fixed support, or the ball nut
[09:33:00] <archivist> iirc little finger on top of column moves the pointer full scale http://www.collection.archivist.info/searchv13.php?searchstr=Mercer+comparator
[09:33:00] <zeeshan> after im happy with that, ill put a solid tool post and retry the cnmg vs ccmt test
[09:33:27] <zeeshan> lol .00001
[09:33:29] <zeeshan> :]]
[09:34:24] <archivist> something like a 2" column bending with the weight of the base being the only reaction
[09:34:48] <zeeshan> yea just do bending of beams math
[09:34:55] <zeeshan> and youll see quickly how much stuff deflects
[09:35:01] <zeeshan> steel is like E = 210Gpa
[09:35:04] <zeeshan> thats all you really need
[09:35:23] <zeeshan> stuff might not fail
[09:35:29] <zeeshan> but it certainly deflects!
[09:36:04] <archivist> the paper roller I did suffered from bending
[09:37:00] <archivist> and when the roller has a crown against the bend the circumference varies therefore wrinkling the paper
[09:37:47] <archivist> use backing rolls for the pressure, and parallel for contact
[09:37:50] <zeeshan> so precvis e:D
[09:38:28] <zeeshan> is that the most precise indicator you have?
[09:38:37] <zeeshan> ive never seen a .0001
[09:38:39] <zeeshan> ive never seen a .00001
[09:38:48] <zeeshan> i have a .00005
[09:40:05] <archivist> I also have the digimatic which is reasonable and covers 2" travel
[09:40:05] <zeeshan> wow its 5am
[09:40:07] <zeeshan> i need to go o sleep
[09:40:13] <zeeshan> nice
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[12:14:57] <miss0r|shop> Can someone tell me what this 'Driver Microstepping' is? (configuering the axis)
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[12:29:25] <_methods> http://linuxcnc.org/docs/html/config/stepconf.html#_axis_configuration_a_id_sec_axis_configuration_a
[12:29:28] <_methods> like that
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[12:30:27] <archivist> miss0r|shop, chose something sensible, high numbers may be smoother but not more accurate, lower means faster
[12:31:10] <miss0r|shop> I've read the link, but I still have no idea what it is
[12:31:35] <_methods> Driver Microstepping - The amount of microstepping performed by the driver. Enter 2 for half-stepping.
[12:31:54] <_methods> so if you put in 4 that would be quarter-stepping
[12:32:06] <_methods> 8 = 1/8 stepping
[12:32:14] * miss0r|shop is reading up on half stepping and quarter stepping
[12:32:32] <Praesmeodymium> the driver chips themselves do a cheat thing that allows for between full step motions of a stepper motor this is usually configurable via jumpers or switches
[12:32:48] <_methods> what drivers are you using?
[12:33:26] <miss0r|shop> CW-5045
[12:34:08] <_methods> looks like a dqm542
[12:34:24] <miss0r|shop> let me get this straight. I can make it "hold" inbetween steps?
[12:34:39] <miss0r|shop> with this have more than the 200 steps/rev the motor specifies?
[12:34:50] <archivist> best hold is full step
[12:35:04] <_methods> you should read up on steppers
[12:35:08] <miss0r|shop> but I am understanding this correct? :)
[12:35:10] <archivist> but that is also worst for resonance
[12:35:12] <_methods> http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Stepper_Drive_Timing
[12:35:42] <archivist> it is a compromise
[12:35:50] <_methods> at the bottom of the page are teh settings for your stepper driver
[12:36:35] <miss0r|shop> _methods: Thanks, i already have thoes settings :) I just need to read up on the stepper more
[12:36:39] <_methods> http://www.orientalmotor.com/technology/articles/step-motor-basics.html
[12:36:48] <_methods> they have a cool little gif
[12:36:53] <_methods> that shows how the stepper coils work
[12:37:26] <_methods> explanations of 2 phase and 5 phase steppers
[12:38:31] <archivist> a happy medium of resonance v speed can be 8 micro steps but your system can be different
[12:38:35] <miss0r|shop> I guess this is only interresting if I want higher resolution
[12:38:40] <_methods> yes
[12:38:51] <_methods> or more speed but less torque
[12:39:06] <archivist> resolution does not mean accuracy though, be very careful
[12:39:13] <miss0r|shop> more speed? by skipping over coils?
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[12:39:23] <miss0r|shop> archivist: indeed.
[12:39:31] <archivist> less resonance means more speed
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[12:39:58] <_methods> incresead speed with partially energized coils
[12:40:00] <archivist> but you cannot go fast on a parralel port
[12:40:33] <miss0r|shop> I am going to stop asking questions for now. I will just read the page ;)
[12:41:20] <_methods> well that page is on the in depth side there are many good overviews that relate more closely to cnc applications
[12:41:36] <miss0r|shop> I like to know the details
[12:41:55] <_methods> then that page is probably a good start
[12:43:10] <archivist> and this page http://www.micromo.com/microstepping-myths-and-realities
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[12:44:29] <miss0r|shop> heh, i've already had a few aha-moments
[12:45:48] <_methods> yeah i half step on my minimill and that's it
[12:46:21] <_methods> it's funny when my buddy comes over he's one of those 3d printer clowns and he cries and cries about the noise
[12:46:33] <_methods> apparently 3d printer people have sensitive ears
[12:46:43] <miss0r|shop> hehe
[12:48:18] <archivist> _methods, I went through a few tests when setting up the hobbing setup, noise is very noticeable at various speeds
[12:48:43] <miss0r|shop> when my roland mill is running noone can hear the steppers due to the cutting. I can see how 3D print people would care about the noise. also, most of them have the printer in their parents basement(fact) :)
[12:49:02] <archivist> or bedroom
[12:49:11] <miss0r|shop> running while you sleep :)
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[12:49:20] <miss0r|shop> or in some cases, apparently, don't sleep
[12:49:42] <archivist> steppers "singing" you to sleep
[12:50:29] <miss0r|shop> I had a 3-axis CHINA(yes, so chinese it needs to be written like that) that made a horrible noise dragging the table around.
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[12:54:43] <_methods> yeah i'm used to machine shop noise so little steppers talking don't really offend my ears
[12:55:09] <_methods> and LOL at the basement crack
[12:57:28] <_methods> this is kinda cool
[12:57:30] <_methods> http://www.lucadentella.it/en/2015/02/28/un-piccolo-cnc-bot/
[12:58:27] <_methods> http://www.piccolo.cc/
[12:58:43] <miss0r|shop> thats damn tiny
[12:58:49] <_methods> pretty useless but still cool
[13:02:26] <_methods> good little portable "cnc" tool for doing demos
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[13:04:57] <Swapper> http://en.wikipedia.org/wiki/Metrication_in_the_United_States
[13:05:44] <_methods> In 1875, the United States solidified its commitment to the development of the internationally recognized metric system
[13:07:57] <Swapper> http://time.com/3633514/why-wont-america-go-metric/
[13:08:54] <Swapper> i where only curious why :)
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[13:09:06] <_methods> it's insane
[13:09:14] <Swapper> apperently the US Army is all metric ?
[13:09:25] <_methods> yeah all the services should be
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[13:09:47] <_methods> the real problem lies in the construction industry
[13:09:49] <Swapper> so all shops delivering army related parts need to do them metric :)
[13:10:04] <_methods> they refuse to give up imperial
[13:10:07] <Swapper> yea they mentioned that in the time article
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[13:10:42] <_methods> most of the guys in construction used every ounce of brain power they possess to learn to read one type of tape maesure
[13:10:59] <_methods> asking them to learn to use another tape measure is just too much
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[13:11:19] <Tom_itx> ulgh, more snow... 19°F
[13:11:19] <_methods> civil engineers just really are the dumbest engineers
[13:11:47] <Tom_itx> they move rocks
[13:11:54] <_methods> indeed
[13:12:04] <_methods> in imperial
[13:12:26] <_methods> they worked hard to move it 2 feet
[13:13:07] <Swapper> hehe
[13:14:36] <archivist> they mine 800 ton blocks of marble
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[13:14:58] <_methods> with machines made by mechanical engineers
[13:15:17] <archivist> have to move it to see where to slice before they take out of the mine
[13:15:37] <_methods> hehe i just like to make fun of CE's
[13:15:49] <cpresser> "and the wine and spirits industry abandoned fifths for 75-milliliter bottles." <-FAIL!
[13:16:07] <cpresser> 750ml it is. 75ml is like a double shot.
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[13:16:52] <Tom_itx> it just sounds wrong to ask for a fourth of whiskey!
[13:17:19] <SpeedEvil> Is there a 3d printer channel?
[13:17:25] <_methods> unfortunately
[13:17:25] <Tom_itx> reprap
[13:17:30] <Tom_itx> unfortunately
[13:17:38] <Tom_itx> it's nearly as bad as electronics
[13:17:43] <_methods> or #ubuntu
[13:17:45] <archivist> that is spelled repcrap
[13:17:59] <SpeedEvil> I've been wondering about a glass printer
[13:18:01] <_methods> it's a place full of special
[13:18:24] <SpeedEvil> That is - a printer that prints glass - not using it as a structural element
[13:18:32] <_methods> yeah a guy made one
[13:18:34] <_methods> solar
[13:18:36] <_methods> sand
[13:18:39] <_methods> =
[13:18:40] <_methods> glass
[13:18:48] <SpeedEvil> No, I mean 'proper'
[13:19:02] <_methods> well that would be interesting
[13:19:05] <SpeedEvil> As in produces nice glass objects - with admittedly some 'grain'
[13:19:21] <SpeedEvil> Basically 3d printer in a kiln
[13:19:39] <_methods> i'm about 100% sure no 3d printer channel will have the help you need with this project
[13:19:43] <SpeedEvil> yeah
[13:20:04] <_methods> they can barely handle squishing plastic out in formed shapes
[13:20:09] <Swapper> maybe some kind of sinter method ?
[13:20:12] <Swapper> with laser
[13:20:21] <SpeedEvil> Swapper: no, I mean very normal 3d printing.
[13:20:33] <SpeedEvil> Swapper: Just with the hot end at 1000C or so.
[13:20:41] <_methods> inconel nozzle lol
[13:20:57] <Swapper> quite special to create somthing that withstand 1000c and thats that small and controllable
[13:21:00] <archivist> glass dreams
[13:21:09] <SpeedEvil> Laser sintering is way easier
[13:21:38] <Swapper> a silica sand bed that is melted with laser
[13:21:44] <Swapper> could that work ?
[13:23:40] <SpeedEvil> you'd need to use borosilicate, I suspect
[13:24:04] <SpeedEvil> Or heat the bed significantly - to several hundred C - otherwise the cooling will shatter it
[13:24:34] <Swapper> but that problem you would have anyhow? even if you "extruded" the glass
[13:24:38] <Swapper> and formed it
[13:25:07] steve_stallings is now known as steves_logging
[13:25:25] <SpeedEvil> yes.
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[13:29:19] <jthornton> http://ibin.co/1tfMBbpqnOBP
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[13:29:58] <jthornton> http://ibin.co/1tfMMDzV4lKs
[13:32:48] <Jymmm> arc of/for?
[13:34:19] <_methods> cool
[13:34:23] <_methods> you got it working good
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[13:53:24] <JT-Shop> getting there, I can create G2/3 from the coordinates and diameter of the arc then send the profile to a file and load it in Axis
[13:54:02] <JT-Shop> you can type in linear moves then add an arc etc
[13:54:23] <JT-Shop> last phase is to integrate the roughing code for the profile
[13:54:53] <JT-Shop> and it is all done in python with Gtk
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[14:05:32] <_methods> nice work
[14:07:51] <_methods> if only i had a linuxcnc lathe now lol
[14:08:10] <_methods> after i finish the x2 i'm doing a plasma table thoug
[14:08:14] <_methods> need that first
[14:08:15] <_methods> then lathe
[14:08:34] <_methods> just be stuck cranking handles for a bit longer
[14:09:51] <archivist> graver and hand rest should be good enough :)
[14:10:03] <_methods> hehe
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[14:23:12] <Swapper> im redoing the cnc of my old X2, its fun to make parts for a mill and not doing the parts on the same machine... :)
[14:23:26] <Swapper> sooo much easier
[14:29:24] <_methods> yeah
[14:29:27] <JT-Shop> I'm thinking now that I don't even need to bother with GladeVCP it just makes it more complicated to code
[14:29:59] <JT-Shop> I can just pop the program up and I'm using axisremote to load the file so I'm GTG
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[15:11:13] <_methods> yeah i might do a 7040 before i do the lathe
[15:11:29] <_methods> those machines look quite a bit better and around the same footprint as my x2
[15:11:47] <Swapper> yea a bit sturdier and a lot more travel
[15:12:00] <Swapper> i got my hands on a RF45 "XL" type mill
[15:12:03] <Swapper> a Luna 500
[15:12:18] <Swapper> about the same travel
[15:12:23] <_methods> as the 7040?
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[15:12:27] <Swapper> yea
[15:12:36] <_methods> is the 7040 and the rf45 basically the same thing?
[15:12:48] <Swapper> the R45 is more rigid
[15:12:57] <_methods> ah i might do the rf45 then
[15:14:12] <Swapper> its G0704 you mean ?
[15:14:17] <Swapper> http://www.g0704.com/
[15:14:37] <Swapper> you might mean some other mill
[15:15:00] <_methods> yeah
[15:15:05] <_methods> g0704
[15:15:09] <_methods> i got dyslexia
[15:15:10] <_methods> lol
[15:15:17] <Swapper> i thaught it where that one :)
[15:15:49] <_methods> where did you get your rf45
[15:16:29] <Swapper> local "craigs list"
[15:16:32] <Swapper> called blocket
[15:16:35] <_methods> oh wow
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[15:16:54] <Swapper> payed like 500$ for it
[15:17:04] <Swapper> it where a bit roached
[15:17:18] <Swapper> but now its fully cnc with AC servos :)
[15:17:25] <Swapper> doing 5m/min
[15:17:30] <_methods> well that's a score and a half
[15:17:35] <_methods> i paid that much for my turd x2
[15:17:45] <Swapper> yea i payed more for the X2 new
[15:17:52] <Swapper> about 600
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[15:19:33] <_methods> wish i had more room in the garage i'd just get a bridgeport
[15:20:44] <Swapper> i wish i had lots more room, the mill takes like 25% :)
[15:20:51] <Swapper> but it works
[15:20:56] <Swapper> its only hoby
[15:20:59] <_methods> yeah
[15:21:49] <_methods> will be nice if i can get a few jobs that pay so i can add on to the garage and put some real machines in
[15:22:59] <archivist> what is a paying job
[15:23:11] <_methods> one that nets profit lol
[15:24:10] * JT-Shop has 467 parts and 40 weldments to make
[15:24:31] <_methods> soemthing like that
[15:25:20] <archivist> I currently have 0 to make :(
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[16:40:07] <ssi> morn
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[17:01:15] <CaptHindsight> rather than not crashing the machine, the customer now wants extra actuators and parts so that they can replace them :)
[17:01:27] <ssi> ha
[17:03:01] <CaptHindsight> first they broke the motor to screw couplings, now they broke the not on the screw
[17:03:12] <CaptHindsight> not/nut
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[18:19:35] <Connor> CaptHindsight: Which machine is this ?
[18:22:22] <CaptHindsight> it's a gantry robot
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[18:22:40] <Connor> Why would the be crashing ?
[18:23:04] <Connor> Does it not have limit switches ?
[18:23:07] <archivist> user participation
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[18:23:25] <_methods> hehe
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[18:25:00] <XXCoder> heys
[18:25:58] <zeeshan> im trying to get more rapid speeds out of my lathe
[18:26:18] <zeeshan> can someone help me see if im calculating this stuff right
[18:26:51] <Connor> What's to calculate.. turn the IPM up till it stalls than back down 20 or 30 %
[18:27:04] <zeeshan> well
[18:27:10] <zeeshan> i need to see if im anywhere close to theoretical
[18:27:13] <zeeshan> i feel like im not.
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[18:27:58] <Connor> Your have a torque curve for your stepper ?
[18:28:07] <zeeshan> on Z i got: 5mm pitch ball screw (5.102 threads per inch), direct drive..
[18:28:13] <zeeshan> im using 1/4 stepping
[18:28:19] <archivist> you dont want to get near theoretical if you want to remain in control
[18:28:34] <zeeshan> http://www.kelinginc.net/KL34H2120-42-8AT.pdf
[18:28:38] <zeeshan> yea i think its like that
[18:28:41] <zeeshan> archivist: i know
[18:28:47] <zeeshan> i need a starting point
[18:29:11] <archivist> a starting point is losing steps, back off a lot
[18:29:12] <zeeshan> using that chart, to convert pps to rpm
[18:29:24] <zeeshan> you gotta do ie [3000 pps / 200 ]* 60?
[18:29:34] <zeeshan> cause theres 200 pulses per rev?
[18:29:51] <zeeshan> so 3000 pps = 900 RPM
[18:29:54] <Connor> correct
[18:30:07] <zeeshan> okay now thats in human units
[18:30:24] <Connor> you want to stay in the 2000 to 3000 pps range.
[18:31:08] <zeeshan> 900/5.102 = 176 ipm
[18:31:17] <zeeshan> i can't seem to get more than 90 ipm on the Z
[18:31:29] <zeeshan> i feel like the double ball nut
[18:31:34] <zeeshan> is causes some serious friction
[18:31:38] <zeeshan> i had a hard time turning that thing by hand
[18:31:42] <zeeshan> the X axis was a lot smoother
[18:31:58] <Connor> Is this one double nutted ?
[18:32:05] <zeeshan> both are double nutted right now
[18:32:11] <zeeshan> but the x went on smoothly by hand
[18:32:17] <zeeshan> the Z needed some torquing.
[18:32:21] <Connor> also, the stupid seal adds extra friction
[18:32:21] <zeeshan> its hard to turn it by hand
[18:32:29] <zeeshan> whcih ones?
[18:32:30] <zeeshan> on the mounts?
[18:32:36] <Connor> the ones on the bearing blocks.
[18:32:43] <FinboySlick> zeeshan: You are driving your big mill with steppers?
[18:32:49] <zeeshan> FinboySlick: no
[18:32:49] <Connor> but, your saying the nut itself is hard to turn?
[18:32:50] <zeeshan> my lathe
[18:32:57] <zeeshan> yes connor
[18:33:03] <zeeshan> with the single ball nut
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[18:33:11] <zeeshan> i could rapid only at 120 ipm
[18:33:13] <zeeshan> not close to 176
[18:33:26] <zeeshan> so maybe i have multiple problems
[18:33:28] <Connor> take the seals off the bearing block.
[18:33:34] <Connor> or, it could be binding..
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[18:33:45] <Connor> you have both ends fixed ?
[18:33:50] <zeeshan> nah one is floating
[18:34:03] <Connor> floating in air, or in a block?
[18:34:07] <zeeshan> block
[18:34:14] <Connor> so, you could still bind.
[18:34:37] <zeeshan> should i try floating it?
[18:34:41] <Connor> try taking the seals out of the bearing block first.
[18:34:41] <zeeshan> without the block
[18:34:59] <Connor> to eliminate any source of friction.
[18:35:18] <Connor> How hard is it to turn the ballnut on the screw itself.. (without turning the screw.. just rotate the nut)
[18:35:26] <zeeshan> quite hard, i cant do it by hand
[18:35:32] <zeeshan> i had to put a nut at the end of the ball screw
[18:35:42] <zeeshan> and turn the ball nut in a vise
[18:35:45] <zeeshan> after i got it on
[18:35:49] <Connor> Something is wrong then.
[18:35:53] <zeeshan> it still takes a good amount of force
[18:35:56] <Connor> WAY wrong.
[18:36:11] <Connor> you should be able to turn that ball not with 2 fingers.
[18:36:12] <CaptHindsight> Connor: they can crash it into anything in the work envelope
[18:36:28] <CaptHindsight> same as a mill or lathe
[18:36:29] <Connor> CaptHindsight: Idiots.
[18:36:37] <zeeshan> connor do you remember what you had your accel set to?
[18:36:46] <CaptHindsight> limit switches don't limit their ability to break it
[18:36:53] <Connor> No I don't.. but, that doesn't matter.. your missing what I'm saying..
[18:37:05] <zeeshan> connor no i took that into my brain
[18:37:12] <zeeshan> im making a list of things to check :)
[18:37:28] <zeeshan> my x axis is ratioed 2.7:1
[18:37:29] <Connor> if you remove the ballscrew from the bearing blocks.. hold the screw, and turn the nut.. it should turn freely..
[18:37:46] <Connor> with 1 or 2 fingers..
[18:38:00] <zeeshan> so only 333 rpm available, 65 ipm
[18:38:06] <zeeshan> but im rapiding that thing at 100 ipm
[18:38:25] <Connor> if it doesn't.. something major wrong.. too large of balls.. grit... or the whipers on the nut are too tight. or all the above.
[18:38:27] <zeeshan> connor yea my x axis ball nut moves ewasly
[18:38:34] <zeeshan> wipers i put on after
[18:38:49] <zeeshan> i think the balls might be too big
[18:38:57] <zeeshan> ill have to go throug hthe pain staking process of measuring them all
[18:39:10] <Connor> Did you replace them ?
[18:39:19] <Connor> and was it like this with the original nut ?
[18:39:31] <zeeshan> no, the original single nut was easy to turn
[18:39:34] <zeeshan> with 2 fingers
[18:40:12] <Connor> OKay. So.. is this the one you had to reload the balls in?
[18:40:16] <zeeshan> yea
[18:40:26] <Connor> okay. It's possible you have a ball out of the circuit.
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[18:41:01] <Connor> also, you and test to see if it's the preload of both nuts by taking the 2nd one off.. just put it on a tube.
[18:41:12] <archivist> missing ball=more space, extra ball?
[18:41:35] <archivist> dual nuts inline?
[18:41:38] <_methods> ball trapped between races = no space
[18:41:47] <Connor> archivist I'm thinking ball just outside of the circuit preventing one of them circuits from circulating at all.
[18:42:01] <archivist> and then sliding
[18:42:25] <Connor> archivist yes. the LMB2008 style with tabs to keep them rotating together.
[18:42:31] <archivist> the tubes should not allow that to happen
[18:42:46] <Connor> No tubes. internal races.
[18:43:00] <Connor> with plastic returns.
[18:44:24] <zeeshan> i think im gonna do it like this:
[18:44:30] <zeeshan> remove ball nut and floating support
[18:44:46] <zeeshan> turn ball screw in the fixed mount and see if it is easy to rotate
[18:44:57] <zeeshan> then check end play
[18:45:08] <Connor> you just told me you had to use the vise...
[18:45:17] <Connor> to turn the nut on the screw...
[18:45:22] <zeeshan> yea initially
[18:45:32] <zeeshan> itll be a bitch take it off
[18:45:39] <zeeshan> but i can do it
[18:45:42] <Connor> okay.. I'm saying.. that's way to hard.
[18:45:55] <Connor> something is wrong with the circuit in the ballnuts.
[18:45:58] <zeeshan> yea for sure, i acknowledged that
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[18:46:05] <zeeshan> im just need to also make sure i dont have backlash issue
[18:46:12] <zeeshan> this axis i was originally getting 4.5 thou backlash
[18:46:14] <zeeshan> w/ the single nut
[18:46:27] <zeeshan> but i think a lot of that is coming from the fixed support
[18:46:36] <Connor> then don't frack around.. take the nut off and repack it again.. and make sure you don't allow a ball to jump out of the circuit..
[18:46:43] <zeeshan> how do you do that? :p
[18:46:47] <zeeshan> i used tons of grease
[18:46:59] <zeeshan> each circuit had about 1/2 a ball gap in it
[18:47:02] <zeeshan> after i fulled packed em
[18:47:12] <Connor> that could be part of the issue too.
[18:47:16] <Connor> too MUCH grease.
[18:47:29] <Connor> and you could still have had a single ball jump a circuit.
[18:47:49] <zeeshan> how do you stop that :)
[18:47:57] <ssi> do it better.
[18:48:01] <Connor> Yup. :)
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[18:48:17] <zeeshan> should there be gap in each circuit?
[18:48:18] <Connor> Also, remember when I said they match the nut to the screw? It could be that too.
[18:48:25] <Connor> yea. that's fine.
[18:48:29] <zeeshan> so i got lucky with X axis?
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[18:48:35] <Connor> could be.
[18:48:58] <Connor> You can also test by taking the nut without the flange off (be sure to use the tube they came on)
[18:49:03] <Connor> and see how hard it is to turn.
[18:49:22] <Connor> if it freely turns after that one comes off.. they have too much preload.
[18:50:11] <Connor> and you would need to adjust by grinding those clips down.
[18:50:45] <Connor> oh hell.. you don't even have to take the nut off.. you can just remove the screws and pull the clips..
[18:51:02] <zeeshan> i think to make this work better
[18:51:08] <zeeshan> ill assemble the nut without the flange on by itself
[18:51:13] <zeeshan> and then the flanged nut by itself
[18:51:25] <zeeshan> then make them meet on the ball screw
[18:51:41] <zeeshan> and then see if i can get them to line up
[18:51:43] <Connor> Well.. pull the clips first and test.
[18:51:51] <Connor> that might be all you need to do..
[18:51:54] <zeeshan> yea
[18:52:07] <Connor> is take a few .0001 off the clips.
[18:54:53] <zeeshan> will mess around with it tonight
[18:54:54] <zeeshan> :)
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[18:56:02] <miss0r|shop> I am configuering a cw-5045 stepper controller for a 3A/phase stepper. The closest I can come is 2,8 or 3,2A. What mshould I choose?
[18:56:31] <_methods> 3.2
[18:56:32] <Connor> 3.2
[18:56:37] <_methods> more = better lol
[18:56:44] <Connor> The motor won't pull more than it's rated..
[18:56:54] <zeeshan> it wont? :D
[18:56:58] <miss0r|shop> yeah, but if I set it to 4,5A it will fry?
[18:58:21] <miss0r|shop> it also has a full/half power. is that just to make the scale have choices or does it mean something else?
[18:58:37] <miss0r|shop> current... full/half current
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[18:58:50] <Connor> No. Think of it like plugging a 3amp fan into a 15amp wall socket..
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[18:59:11] <Connor> the fan will pull what it's rated for. and no more.
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[18:59:36] <Connor> That sounds like a idle current selection.. I turn that on.
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[18:59:39] <Rab> miss0r|shop, from the datasheet: " Automatic half current option for power saving and reduction in standby temperature"
[18:59:40] <miss0r|shop> hmm... I thought the stepper controller regulated the voltage to get the current you set it for
[18:59:49] <miss0r|shop> rab, thanks
[19:00:20] <zeeshan> i have 6A steppers
[19:00:25] <zeeshan> i have it set to 5.4A
[19:00:28] <zeeshan> i should prolly step it up to 6.1A
[19:00:39] <zeeshan> get a bit more performance out of em
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[19:01:08] <Rab> miss0r|shop, I believe the half current option only applies when the driver isn't actively stepping. Less holding torque, but lower power and cooler operation as they say.
[19:01:55] <ssi> someone buy me this
[19:01:57] <ssi> http://www.barnstormers.com/classified_954575_Grumman+Albatross.html
[19:02:06] <ssi> HOUSEBOATPLANE
[19:02:17] <zeeshan> youve been watching too much expendables
[19:02:17] <_methods> oh damn
[19:02:18] <zeeshan> haha
[19:02:20] <_methods> dats pimp
[19:02:27] <Rab> I have the same understanding of voltage/current with respect to stepper drivers. I wouldn't set over 100% of the rated current.
[19:02:30] <ssi> albatross is a truly absurd airplane
[19:02:45] <ssi> won't fit in any hangar on our airport
[19:02:55] <ssi> biggest hangar we have is an 80' door, 90' clear span
[19:03:00] <ssi> albatross is 92' wingspan, 65' long
[19:03:16] <zeeshan> Connor: your theory about the fan is slightly off :P
[19:03:23] <ssi> it's twice the size of my house
[19:03:25] <_methods> includes 2 spare engines lol
[19:03:32] <ssi> yeah
[19:03:33] <zeeshan> you're right that it'll draw whatever current it needs if you give it a certain voltage
[19:03:39] <ssi> and they're R1820 1450hp radials too hahah
[19:03:44] <ssi> bastard holds 2000 gallons of fuel
[19:03:45] <Rab> If you're running at the rated voltage for the motor, it'll draw under the limit. If you're using a much higher voltage with a chopper driver, I think you'd better adjust the driver to the rated current or below.
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[19:03:49] <ssi> the wing is 22' off the ground
[19:03:49] <zeeshan> but if you add extra load on that fan, , itll draw more current
[19:03:50] <ssi> ABSURD
[19:04:02] <zeeshan> but fans are a slightly different beast cause they're impedance matched
[19:04:14] <Cromaglious> ssi, you can't stick it on rollers and angle it in?
[19:04:23] <ssi> doubt it
[19:04:24] <miss0r|shop> rab i'm running at 36V on 5V steppers
[19:04:27] <miss0r|shop> so, below it is :)
[19:04:56] <Rab> miss0r|shop, right, I would choose 2.8A.
[19:05:01] <Cromaglious> Albatross is such an ugly plane it's pretty
[19:05:16] <_methods> ssi: i thought you were linking to an albatross d III
[19:05:19] <zeeshan> rab you think 200mA
[19:05:22] <_methods> http://en.wikipedia.org/wiki/Albatros_D.III
[19:05:23] <zeeshan> is gonna make a diff ;p
[19:05:24] <zeeshan> er
[19:05:30] <zeeshan> 400 mA
[19:05:49] <zeeshan> like in my case 6A/phase , i set it to 6.1A instead of 5.4A
[19:05:49] <ssi> _methods: that wouldn't be quite as comfortable of a house
[19:05:52] <ssi> and a TERRIBLE boat :D
[19:05:54] <_methods> no lol
[19:05:56] <zeeshan> .100 mA will fry it? :D
[19:05:59] <zeeshan> .100A
[19:06:01] <Rab> zeeshan, do you think the rating on the motor is a falsehood?
[19:06:03] <_methods> but great for shooting down brits
[19:06:11] <zeeshan> Rab: yes
[19:06:13] <ssi> so long as they're in camels
[19:06:17] <_methods> heheh
[19:06:17] <zeeshan> first of all it doesnt tell you the duty cycle
[19:06:20] <DaViruz> i'd like to have a l39 albatros
[19:06:24] <zeeshan> that it is at
[19:06:26] <Rab> If you want equipment to last, you derate it.
[19:06:37] <ssi> I've flown an L39 actually hahahah
[19:06:41] <DaViruz> oh
[19:06:45] <zeeshan> for example, an induction motor can easily take twice the fla
[19:06:47] <zeeshan> for short periods
[19:06:53] <ssi> they're fun, but i wouldn't own one
[19:06:58] <zeeshan> my servo motors have a s3 rating
[19:07:04] <zeeshan> 20% 50%
[19:07:05] <zeeshan> etc
[19:07:09] <DaViruz> from what i understand they're pretty cheap to own for a jet
[19:07:22] <ssi> yeah it's the absolute cheapest way to have a "fighter jet"
[19:08:10] <DaViruz> i have a model one with a turbine, that'll have to suffice
[19:08:29] <ssi> eesh RC turbines cost more than some real airplanes :P
[19:09:14] <Cromaglious> ssi hehe L39 flown by the patriots... home ported at Byron Airport.. Worst just jet show ever
[19:09:31] <ssi> lol yeah they're pretty marginal as jets go
[19:09:35] <DaViruz> this one isn't that bad though, i'm about $5k in i'd guess
[19:09:56] <Cromaglious> What year is the Grumman HU-16?
[19:10:11] <ssi> DaViruz: https://pbs.twimg.com/media/B8yE-jWIgAAduWf.jpg:large I've got $15k in that :P
[19:10:14] <ssi> Cromaglious: 1956
[19:10:39] <Cromaglious> nice mid production
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[19:11:53] <ssi> DaViruz: here ya go http://www.barnstormers.com/classified_793081_Aero+Vodochody+L-39+Albatros.html
[19:12:00] <ssi> I've seen that airplane in person a few times
[19:12:16] <DaViruz> that's not too bad
[19:12:24] <ssi> nah they're cheap to acquire
[19:12:28] <ssi> not cheap to maintain or run tho :)
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[19:13:55] <Cromaglious> Cheaper to build a composite BD-5, I know a guy with Molds for a Composite BD-5 fuselage in San Antonio
[19:13:56] <ssi> idle 68gph, takeoff 350gph, climb 200gph, low alt cruise 170gph, high alt cruise 140gph @ 340kt
[19:14:05] <ssi> that's... awful
[19:14:14] <ssi> Cromaglious: there's a BD-5J for sale in tennessee
[19:14:17] <ssi> for like 20k
[19:14:22] <mozmck> There are a couple of BD-5 kits around here for sale.
[19:14:25] <ssi> they won't sell it to anyone unless they can demonstrate proficiency... somehow
[19:14:34] <Cromaglious> ssi stretched?
[19:14:49] <Cromaglious> BD-5 has terrible wings
[19:14:52] <ssi> dunno... the J model is the jet
[19:14:53] <Rab> ssi, what's that weird fan between the landing gear?
[19:15:16] <DaViruz> that's the propeller!
[19:15:25] <ssi> Rab: on what?
[19:15:37] <Rab> On the L-39: http://barnstormers.com/tmp_images/e5/dd/.watermarked_feaf6437a9e8101178c4f613e155a48b.jpg
[19:15:55] <Cromaglious> Emergency power
[19:15:58] <ssi> slipstream alternator probably
[19:16:02] <ssi> yeah
[19:16:37] <archivist> propulsion when floating on the sea
[19:16:37] <Cromaglious> gives you power if you have a flame out and the turbines stop turning
[19:16:55] <ssi> yeah the L39 is a single
[19:16:58] <ssi> one of its big weaknesses
[19:17:04] <Cromaglious> hopefully you have enough height to restart
[19:17:25] <Cromaglious> or some place not to expensive to land or plant
[19:17:40] <ssi> here's another bede for sale
[19:17:40] <ssi> http://www.barnstormers.com/classified_983658_BD-5+Microjet.html
[19:18:26] <DaViruz> that's too cute
[19:18:40] <ssi> yeah on a scale of one to totes, they're totes adorbs
[19:18:51] <Cromaglious> ssi think BD-5 with a wing profile of a DC-3 wing root NACA 2520 I think and a T tail
[19:19:13] <_methods> octopussy
[19:19:47] <ssi> I have an airplane design rolling around in my brain
[19:20:06] <ssi> imagine a spitfire planform, scaled down to about a 22-24' wingspan
[19:20:15] <Cromaglious> 16 degree angle of attack instead of 5, and tail is flying even on take off vs a Bede-5 Loft into air on Ground effect and hopefully your flying before you crash
[19:20:15] <ssi> single seat and powered by a 180-200hp lyco
[19:20:20] <ssi> retract
[19:20:39] <ssi> I want it to do better than 300mph on less than 14gph
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[19:21:44] <Cromaglious> well the composite bd-5 (CS-100) would max out at around 230 on a Rotax 80hp
[19:22:06] <ssi> yeah it's not hard to do on tiny airplanes
[19:22:18] <ssi> the nemesis formula 1 plane does 292mph on 100hp O-200
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[19:25:04] <_methods> how much is hangar rental typically?
[19:25:13] <ssi> it's all over the map
[19:25:23] <ssi> I pay nominally $300 per t-hangar
[19:25:35] <ssi> the more rural you get, the cheaper it gets
[19:25:44] <ssi> if I wanted to be closer to the city, it'd be two or three times higher
[19:25:50] <_methods> and you keep your machines there?
[19:25:55] <ssi> yeah
[19:25:58] <ssi> I have three T-hangars
[19:26:03] <_methods> sounds like a great deal
[19:26:07] <_methods> for that amount of space
[19:26:07] <ssi> and one of them is an end unit, so there's ahalf-hangar extra space
[19:26:10] <_methods> at that price
[19:26:14] <ssi> I pay $850 for 3.5 hangars
[19:26:26] <_methods> that quite a bit of sq footage
[19:26:29] <ssi> it is
[19:26:35] <_methods> for that rate
[19:26:37] <_methods> damn
[19:26:37] <ssi> but airplanes take up a lot of space awkwardly
[19:26:41] <_methods> yeah
[19:26:45] <Connor> 3.5 hangers ?
[19:26:52] <ssi> I want to move into a box hangar
[19:26:56] <_methods> still finding commercial space that large
[19:26:57] <_methods> for that low
[19:26:58] <ssi> they're 80x90 I think
[19:26:59] <_methods> good luck
[19:27:12] <ssi> the people in them currently are paying $1000/mo, but if I want one it's mysteriously $1500
[19:27:15] <ssi> pisses me off
[19:27:21] <ds3> what city are you paying $850 for 3.5 hangers?
[19:27:30] <ssi> atlanta
[19:27:34] <ssi> but 30 miles outside the city
[19:29:38] <ssi> "Although Bede had suggested using the B wings,[13] the earliest kits shipped only with the short "A" wings. All four examples completed with these wings crashed on their first flight, three on takeoff and one lasted long enough to crash on landing. In three of the four crashes, the pilots were killed. "
[19:29:43] <ssi> spectacular
[19:30:32] <Connor> ssi: ICK
[19:30:48] <ssi> Connor: that's the nature of the game :)
[19:31:10] <DaViruz> by the forth maiden you'd think they'd see a pattern
[19:31:29] <_methods> i'm sure all their wives were happy lol
[19:31:53] <_methods> oh honey that sounds like a great hobby
[19:31:59] <_methods> just make sure you get a good policy
[19:32:23] <ssi> don't forget I'm the moron who intends to build and testfly an aircraft of my own design :D
[19:32:51] <ssi> but it's ok cause I'm not married
[19:32:57] <DaViruz> you're also the moron who burned your house down with a home built laser cutter ;)
[19:32:57] <_methods> someone has to get the camera crews out of the news station
[19:33:04] <ssi> yussss
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[19:33:39] <ssi> and I'm about to start building mk2 laser cutter
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[19:34:39] <Cromaglious> even the stretch BD-5s with the honda engines don't have enough angle of attack...
[19:34:44] <DaViruz> was anything salvageable from the old laser?
[19:34:51] <DaViruz> salvegeable?
[19:34:55] <DaViruz> what a bothersome word
[19:34:57] <ssi> yeah, I had the linuxcnc configs in git :D
[19:35:00] <DaViruz> :D
[19:35:03] <_methods> hahahah
[19:35:16] <_methods> i need to do that too
[19:35:18] <ssi> probably worth more than any single component
[19:35:18] <Cromaglious> I'll take a DC3 wing profile anyday of the week...
[19:35:21] <ssi> if you factor my time
[19:36:00] <ssi> I think I'm gonna do an 80W reci tube this time, instead of the 100W I had before
[19:36:26] <_methods> oh yeah?
[19:36:35] <_methods> why you going with that?
[19:36:50] <ssi> well, cost and availability mostly
[19:37:01] <ssi> the company I bought my last tube from keeps some in stock in california
[19:37:10] <ssi> it's $115 to ship a tube from CA, or $430 to ship from hong kong
[19:37:12] <miss0r|shop> ´So when nothing works when i¨ve wired up stuff amd am trying off X axis steper. All I can get from it is a minute buzz
[19:37:23] <ssi> the 80W is $625, and the 100W is $1000
[19:37:30] <_methods> ahh
[19:37:30] <ssi> they have 80W on hand, but no 100W
[19:37:33] <ssi> so that makes it DOUBLE
[19:37:46] <_methods> well if the 80w does what you need.........
[19:37:54] <ssi> well also, lasers are weird
[19:38:00] <ssi> and I felt like I never could really fully use the power I had
[19:38:00] <_methods> no shit lol
[19:38:14] <ssi> most materials I was cutting, turning up the power didn't do anything but make the edges more charred
[19:38:16] <_methods> is it a particle or is it a wave lol
[19:38:18] <Tom_itx> sure you can handle 100w ?
[19:38:32] <ssi> my speed limits were mostly based on depth of field
[19:39:15] <ssi> that said, I am going to build this table to accomodate longer lenses
[19:39:20] <ssi> longes practical lens on my last table was 3"
[19:39:26] <ssi> I'd like to be able to run as long as 8"
[19:41:27] <Swapper> miss0r|shop: what driver are you using and voltage?
[19:41:46] <ssi> also it seems like some commercial chinese machines are set up with dual tubes
[19:41:48] <Tom_itx> is newegg in memphis?
[19:41:59] <ssi> so what I'm thinking is do an 80W tube now, and later I can get a second 80W tube and a beam combiner
[19:42:06] <ssi> and have more power for the same money as a 100W tube
[19:42:45] <Swapper> is that C02 tubes or what does recti mean ?
[19:42:59] <ssi> reci is a brand; they're DC-excited CO2 tubes
[19:43:05] <Swapper> ok
[19:43:15] <_methods> Tom_itx: their distribution is i think
[19:43:26] <_methods> i've gotten stuff from newegg memphis before
[19:43:41] <Tom_itx> 2 items coming from there
[19:43:45] <Swapper> what sort of lasers does comercial steel cutting lasercutters use?
[19:43:55] <_methods> beam combiner?
[19:44:06] <_methods> they use co2
[19:44:14] <_methods> 2000w+
[19:44:24] <_methods> the laser at my shop is a little one it's only 3200w
[19:44:24] <Swapper> ok
[19:44:37] <_methods> trumpf makes their own resonator
[19:44:50] <_methods> fanuc, trumpf, and mitsubishi are the big players
[19:44:59] <ssi> I want a "little one" that's only 3200W :)
[19:45:07] <_methods> heheh
[19:45:24] <_methods> fanuc supplies resonators to 3rd party manufacturers like amada
[19:45:26] <ssi> I would love to be able to do a metalcutting laser, but it's not easy to do with DC CO2 lasers :(
[19:45:31] <_methods> no
[19:45:39] <_methods> it's not a simple thing
[19:45:42] <_methods> lots of power
[19:45:47] <_methods> vacuums
[19:45:55] <ssi> there are people advertising 150W CO2 lasers that will cut thin sheet
[19:45:57] <Tom_itx> i imagine you need to be a bit more careful with those
[19:45:59] <ssi> but I'm suspicious
[19:46:01] <ssi> based on my experiments
[19:46:18] <_methods> well i think as a hobbiest if you want to do metal you need to get one of these cheap chinese yag's
[19:46:22] <ssi> I never got around to trying oxygen assist, but 120W scratched 28ga mild, and no more
[19:46:25] <_methods> they're only like $40k
[19:46:30] <ssi> "only"
[19:46:34] <ssi> what about fiber lasers?
[19:46:37] <_methods> well in the laser world that is dirt cheap
[19:46:41] <ssi> I don't know much about anything other than CO2 lasers
[19:46:41] <Tom_itx> how do you get past the 'reflective' surface of the metal?
[19:46:45] <_methods> those yags are fiber
[19:46:50] <ssi> ah ok
[19:46:55] <_methods> Tom_itx: you don't
[19:46:55] <ssi> Tom_itx: reflective is subjective :)
[19:47:03] <miss0r|shop> It seems I have wired everything the way I am supposed to. When I turn on the power, all the steppers lock in, and they are unturnable by hand. When I try to move them with linuxcnc, they move perhaps 1 step to each side, and when I try to turn them by hand afterwards, it is possible... with some efford thou. I can't get them to spin properly. Does this sound like an error you have encountered
[19:47:03] <miss0r|shop> ?
[19:47:03] <_methods> it reflects back and blows up your lens
[19:47:09] <ssi> metal is reflective to 10.6um, but less subjective to 1000nm, which is what yag is
[19:47:10] <_methods> it's why you can't cut copper
[19:47:10] <Tom_itx> heh
[19:47:11] <_methods> brass
[19:47:24] <_methods> and why aluminum is problematic
[19:47:25] <ssi> s/subjective/reflective/
[19:47:26] <ssi> lul
[19:47:29] <Tom_itx> even if you lead the lense?
[19:47:33] <Tom_itx> angle it..
[19:47:35] <_methods> alum in it's molten state is highly reflective
[19:48:02] <_methods> well then the beam would just bounce off
[19:48:31] <_methods> the goal is to quickly create a molten puddle and use gas to push it throuhg
[19:48:37] <_methods> like a shaped charge
[19:48:39] <Tom_itx> do they coat the metal with something before cutting?
[19:48:40] <Tom_itx> to dull it
[19:48:43] <_methods> i have before
[19:48:47] <_methods> milk of magnesia
[19:48:54] <_methods> for problem aluminum before
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[19:49:30] <ds3> does MoM work for cutting brass/copper?
[19:49:33] <_methods> but the yags will cut copper and bass
[19:49:46] <_methods> not that i know of
[19:49:49] <XXCoder> _methods: that made me wonder how good telescope molen alum would be
[19:49:52] <_methods> i've never tried the mom thing on that
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[19:49:57] <ssi> they make high power laser mirrors out of copper
[19:49:59] <ssi> tihnk about that :)
[19:50:03] <XXCoder> some guy made telescope out of liquid mecury
[19:50:12] <_methods> yeah most of our bend optics are copper
[19:50:18] <XXCoder> it was amazing effective but in heavy protection and it only points up
[19:50:23] <_methods> actually all of the bend optics are lol
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[19:50:28] <ds3> _methods: how many watts did you have to cut a MoM coated piece of alum?
[19:50:40] <ssi> my little baby co2 laser uses all silicon mirrors and ZnSe lenses
[19:50:48] <_methods> i have no idea i just used mom as an assisst for aluminum that was being a bitch
[19:51:07] <ds3> i must try MoM
[19:51:09] <_methods> yeah all of our bend optics are water cooled copper mirrors
[19:51:29] <ds3> wonder if that helps with cutting SS too
[19:51:42] <ssi> _methods: can you get me a spare resonator? :D
[19:51:44] <_methods> i've never really had a problem with ss
[19:51:47] <_methods> hahah
[19:51:55] <ssi> like when jdh's company was throwing a bunch away? :P
[19:51:56] <_methods> shit the resonator on the trumpf is like $40k
[19:52:19] <ssi> yag efficiency is really low isn't it?
[19:52:21] <_methods> i think that's for a rebuilt one lol
[19:52:24] <ssi> what's the input power like for 3200W?
[19:52:30] <_methods> i think they're improving the yags
[19:52:40] <ssi> co2 is like 10%, I feel like yag is closer to 1%
[19:52:44] <_methods> something to do with improved solid state emitters
[19:52:47] <_methods> but i'm not sure
[19:53:13] <_methods> i know trumpf is making a huge push on the solid state lasers
[19:53:19] <ssi> diode pumped yag is approaching 40% apparently
[19:53:21] <ssi> that's awesome
[19:53:38] <_methods> yeah
[19:53:53] <_methods> and the beam path is so much shorter and a straight line
[19:54:00] <Swapper> miss0r|shop: are any of the axies working ?
[19:54:22] <Swapper> does the drivers have a standby mode that lowers the power ?
[19:54:29] <miss0r|shop> Swapper: Same syndrome for all axis
[19:54:39] <miss0r|shop> Swapper: it does, but I dissabled it
[19:54:42] <ssi> _methods: are your machines flying optic, rectilinear motion?
[19:55:02] <_methods> flying optic
[19:55:32] <Swapper> miss0r|shop: do you have a scope ? :)
[19:55:37] <miss0r|shop> Swapper: In linux cnc the enable amplifyer is the same as just enable axis, right?
[19:56:00] <miss0r|shop> Swapper: I do. but I promised the wife I would be back in the house in 30 mins, and I would just love to have something moving before i go :)
[19:56:07] <_methods> you shouldn't be able to turn any at all by hand once you've enabled it
[19:56:25] <Swapper> miss0r|shop: ill check my enable
[19:56:56] <Swapper> net z-enable hm2_5i25.0.7i77.0.0.output-14
[19:57:02] <Swapper> but i have mesa cards
[19:57:06] <Swapper> dont know what you have
[19:57:16] <miss0r|shop> cw-5045 stepper driver
[19:57:26] <_methods> breakout board?
[19:57:36] <Swapper> paralell port?
[19:57:47] <miss0r|shop> a RATTM v5 breakoutboard
[19:58:17] <miss0r|shop> for par port, yes
[19:59:56] <_methods> ew gross the manual is all full of mach3
[20:00:25] <miss0r|shop> _methods: you're old enough to ignore that part ;)
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[20:00:31] <_methods> hehe
[20:00:39] <zeeshan> we can never ignore mach
[20:00:50] <zeeshan> =]
[20:00:53] <Swapper> miss0r|shop: when i have tested steppers i have taken a arduino with some step generating code
[20:00:57] <Swapper> only to be able to test
[20:01:09] <ssi> zeeshan: MUST STAMP IT OUT
[20:01:18] <zeeshan> lol
[20:01:39] <miss0r|shop> indeed. I could do that. But with my somewhat limited time, I would just love to satisfy my childish need to see motors spin
[20:01:41] <ssi> zeeshan: I forget, do you solidworks?
[20:01:45] <Swapper> miss0r|shop: you have the right voltages and all that checked?
[20:01:59] <miss0r|shop> yep
[20:02:02] <Swapper> power to the bob ?
[20:02:02] <zeeshan> yes
[20:02:09] <ssi> on 2015?
[20:02:09] <archivist> ssi a few do
[20:02:16] <miss0r|shop> Swapper: yes.
[20:02:25] <Swapper> any leds on the driverS?
[20:02:27] <_methods> so did you wire it active low?
[20:03:04] <miss0r|shop> Swapper: a red and a green. The green is on :)
[20:03:13] <zeeshan> 2013
[20:03:13] <miss0r|shop> _methods: yep
[20:03:18] <zeeshan> need to upgrade to 2015
[20:03:22] <ssi> yes you do
[20:03:28] <archivist> why
[20:03:30] <ssi> I may want to share what I'm working on with you and foce you to help me
[20:03:32] <Swapper> miss0r|shop: so the enable works from linuxcnc ?
[20:03:38] <ssi> did I say force? I meant beg
[20:03:40] <Swapper> or you have it "hot wired"
[20:03:47] <zeeshan> like on modeling it?
[20:03:50] <archivist> downgrade so we can all play
[20:04:00] <zeeshan> archivist: arent you on 2006 still
[20:04:01] <zeeshan> hehehe
[20:04:08] <ssi> more like static analysis
[20:04:08] <zeeshan> best version!
[20:04:21] <zeeshan> ssi i dont trust solidworks simulation
[20:04:28] <archivist> 2004 was pretty damned good
[20:04:31] <zeeshan> just a recent example
[20:04:33] <miss0r|shop> Swapper: The enable works... hotwired? it has common positive and controls on negative
[20:04:38] <zeeshan> i was doing pull stud comparison in ansys
[20:04:44] <zeeshan> and abaqus and solidworks
[20:04:49] <zeeshan> using same meshing
[20:05:02] <zeeshan> for some reason solidworks outputs a smaller max psi number
[20:05:07] <zeeshan> havent figured out why
[20:05:08] <ssi> vell you can do the math by hand if you prefer :D
[20:05:08] <Swapper> miss0r|shop: with hotwired i meant forced it on by putting voltage directly to enable
[20:05:14] <_methods> maybe try going common negative?
[20:05:15] <Swapper> to force it on all the time
[20:05:38] <zeeshan> ssi math by hand ftw!
[20:06:16] <Swapper> http://duxe.ru/images/opto_mont_800.jpg
[20:06:24] <Swapper> not that i can read rushian
[20:06:26] <miss0r|shop> Swapper. I have not :)
[20:06:48] <Swapper> but atleast thats the driver ?
[20:06:58] <miss0r|shop> Swapper: these are reversed. i.e. They have to be low when they are enabled
[20:06:59] <Swapper> you got the coils right ?
[20:07:10] <Swapper> from the motors ?
[20:07:13] <miss0r|shop> Swapper: Check on the coils
[20:07:30] <miss0r|shop> I havent measured on it thou. I used the colors from the manual. hang on - doing measurement
[20:07:30] <zeeshan> do you guys have issues
[20:07:31] <Swapper> been a while since i wired mine but cant you connect those 2 diffrent ways ?
[20:07:36] <Swapper> 1 for more holding
[20:07:38] <zeeshan> with pulleys rotating on flats?
[20:07:50] <Swapper> 1 for more holdingpower
[20:07:51] * zeeshan hates flats so much
[20:08:09] <Swapper> bipolar
[20:08:20] <Swapper> unipolar
[20:08:40] <miss0r|shop> well, I only have 4 wires, so theres not much to mess up
[20:08:51] <Swapper> you can connect it diffrently
[20:09:06] <miss0r|shop> indeed. I have the coils connected correctly
[20:09:27] <Swapper> have u checked the steping delays ?
[20:09:29] <JT-Shop> 50-50 sleet and snow now :(
[20:09:34] <miss0r|shop> well - it SEEMS like that is also in order - something is obviously not
[20:09:53] <miss0r|shop> Swapper: stepping delays?
[20:11:01] <Swapper> cant come up with the right term
[20:11:09] <Swapper> the delay that the driver needs for a step
[20:11:15] <Swapper> anyone know what i mean ?
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[20:12:04] <miss0r|shop> 'step time' 'step space' 'direction setup' 'direction hold' ect?
[20:12:26] <Swapper> http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Stepper_Drive_Timing
[20:12:27] <Swapper> yes
[20:12:28] <Swapper> thats it
[20:12:37] <miss0r|shop> i've set that acording to the manufacture
[20:12:38] <Swapper> but probably not the fault
[20:12:40] <Swapper> in your case
[20:12:41] <ssi> z I'm just gonna draw a simple weldment frame for this table and see how it deflects and stuff
[20:12:44] <ssi> or something
[20:13:13] <Swapper> miss0r|shop: check last row on that URL
[20:13:18] <Swapper> thats your driver ?
[20:13:25] <zeeshan> ssi
[20:13:26] <zeeshan> http://plasmamotion.com/assets/images/Plasma_Table_Sm0202.jpg
[20:13:26] <miss0r|shop> yes
[20:13:27] <zeeshan> something like this?
[20:13:44] <miss0r|shop> that exact page I used for into
[20:13:48] <miss0r|shop> info*
[20:14:29] <zeeshan> http://www.diycraftshome.com/wp-content/uploads/2014/12/5-sharp39-x-2-sharp39-plasma-cutting-table-with-a-funnel-design-under-it-to-direct-all-the-dust-debris-and-slag-into-a-metal-pail..jpg
[20:14:33] <zeeshan> great looking plasma table
[20:14:36] <zeeshan> but do you know whats wrong?
[20:14:40] <ssi> hm
[20:14:41] <zeeshan> all that work and a fundamental mistake
[20:14:54] <ssi> no motion? :P
[20:14:59] <ssi> oh it's just a hand-cut table
[20:15:03] <zeeshan> hes dumping hot metal sparks into a galvanized bucket
[20:15:04] <zeeshan> wtf
[20:15:08] <zeeshan> he/she
[20:15:13] <zeeshan> :D
[20:15:13] <ssi> just put water in it
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[20:15:28] <zeeshan> i hate galvanizing
[20:15:30] <zeeshan> that stuff is aids
[20:15:39] <ssi> it's not that bad
[20:15:43] <XXCoder> what will hot sparks do to galvanized bucket
[20:15:47] <Swapper> miss0r|shop: weerd that the steppers looses torque after a move
[20:15:51] <ssi> release zinc fumes
[20:15:52] <ssi> makes you sick
[20:16:00] <ssi> just have to drink milk to chelate :D
[20:16:02] <XXCoder> oh yea zinc flu
[20:16:03] <zeeshan> haha
[20:16:06] <_methods> then you'll really need that MoM
[20:16:13] <Swapper> miss0r|shop: have you checked the voltage to the drivers while testing ?
[20:16:13] <zeeshan> ssi i think if you can figure out
[20:16:18] <zeeshan> how much your gantry weighs
[20:16:24] <ssi> gantry is LIGHT
[20:16:30] <ssi> I'm gonna do makerslide again; that worked out well
[20:16:32] <zeeshan> you can get a starting value of how strong the frame needs to be
[20:16:46] <ssi> and I'm gonna do it across the short axis this time
[20:16:51] <miss0r|shop> Swapper: http://cnc4you.co.uk/resources/CW5045.pdf <- I want it to use full-step. Wouldn't you agree that the config should be sw5: 0 sw6: 0 sw7: 0 sw8: 0 ?
[20:16:52] <ssi> the last table was 2x4, and the gantry was 4'
[20:16:57] <ssi> this one will be 4x8, and 4' gantry
[20:17:04] <_methods> yeah
[20:17:04] <Praesmeodymium> is makerslide going to be that much stronger than say hiwin clone? they are about the same cost last I looked
[20:17:08] <miss0r|shop> Swapper, I have not. 2 sec
[20:17:11] <zeeshan> big stuff gets a big hard
[20:17:17] <ssi> Praesmeodymium: got a link?
[20:17:18] <zeeshan> cause the metal beams start sagging under their own weight
[20:17:22] <ssi> zeeshan: yes exactly
[20:17:27] <ssi> that's why I need my pet ME
[20:17:43] <zeeshan> 1 thou accuracy in height?
[20:17:52] <zeeshan> do you even need it that precise
[20:17:56] <ssi> not really
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[20:18:06] <miss0r|shop> Swapper: supply voltage = rock steady
[20:18:12] <zeeshan> prolly 20 thou would be acceptable
[20:18:13] <ssi> 10 thou is probably a good target
[20:18:13] <zeeshan> in height
[20:18:23] <ssi> I used to use jo blocks for focus setup
[20:18:25] <zeeshan> x and y would be nice to have less than a thou
[20:18:31] <ssi> and you could be 50 thou off and do ok
[20:18:36] <_methods> miss0r|shop: do you have pics of how you have it wired up
[20:18:38] <zeeshan> yea
[20:18:41] <Praesmeodymium> http://www.aliexpress.com/store/product/Kossel-Mini-MGN12-12mm-miniature-linear-rail-slide-3pcs-12mm-L-1000mm-rail-3pcs-MGN12H-carriage/239992_2044492004.html
[20:18:49] <_methods> from the motor to the driver to the bob
[20:19:04] <XXCoder> 3 peices?
[20:19:11] <ssi> Praesmeodymium: that's a bit expensive
[20:19:12] <XXCoder> tri rail or one each axis?
[20:19:19] <Praesmeodymium> thats a vendor some of the 3dprinter resellers use so the the stuff is generally good
[20:19:21] <_methods> it's for a kossel/delta
[20:19:24] <ssi> and I need like 2800mm
[20:19:47] <zeeshan> have you seen the rail designs
[20:19:49] <Praesmeodymium> ahh yeah shipping from china will kill any cost savings on that kind of length
[20:19:50] <zeeshan> where you take a square beam
[20:19:52] <ssi> the makerslide stuff is pretty cheap
[20:19:57] <zeeshan> and mount it in a diamond formation
[20:20:00] <zeeshan> i dig that
[20:20:05] <ssi> I can get 1800mm and 1000mm pieces for $38 adn $22 respectively
[20:20:07] <XXCoder> im thinking about grabbing this http://www.aliexpress.com/item/3040-CNC-router-milling-machine-mechanical-kit-CNC-aluminium-alloy-Frame-ball-screw-for-DIY-user/2051273724.html
[20:20:11] <XXCoder> what do you guys think
[20:20:31] <ssi> what I did last time was just buy a shapeoko kit for $300 and then buy some long pieces of rail, and use their carriage plates and bearings/wheels etc
[20:20:35] <ssi> it worked out pretty well
[20:20:36] <zeeshan> XXCoder: that lookjs worth it in its weight in aluminum
[20:20:36] <zeeshan> lol
[20:20:39] <Praesmeodymium> ssi: actually once you get the carriage and the wheels and the eccentrics etc, I preced 3 meters of makerslide and those 3 meters of hiwin and the hiwin was 20$ cheaper
[20:21:00] <XXCoder> zee yea I think I will buy it once my money stuff stabilizes after new job settles down
[20:21:01] <ssi> yeah possibly
[20:21:17] <ssi> hm igus has some plastic linear rail components, maybe I should look at them
[20:21:25] <ssi> I need almost no load capacity
[20:21:26] <Praesmeodymium> I thought about that method for a 1mx1m wood engraver, the shapeoko kit
[20:21:28] <Cromaglious> ugh ER11 collets runout 0.0006 sheeshz 6 tenths
[20:21:46] <zeeshan> what kind of ghetto collets are th ose
[20:21:47] <zeeshan> !
[20:21:47] <Cromaglious> that's a $20 set
[20:22:03] <zeeshan> 6 tenths isnt that bad
[20:22:12] <ssi> ER11 implies small cutters
[20:22:14] <Cromaglious> and a $26 set
[20:22:15] <ssi> small cutters HATE runout
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[20:22:38] <Cromaglious> and a $35 set
[20:22:55] <_methods> yeah put a .8mm end mill in there
[20:23:06] <_methods> those 6 tenths will kill ya
[20:23:39] <ssi> yep
[20:23:49] <_methods> funny callin something .8mm an end mill hehe
[20:24:04] <_methods> .5mm end mill
[20:24:13] <XXCoder> .0005 em :P
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[20:24:19] <XXCoder> *mm
[20:24:20] <ssi> that's a lot more than I expected
[20:24:21] <_methods> now that's tiny
[20:24:23] <ssi> http://www.mscdirect.com/product/details/08018616?src=pla&cid=PLA-Google-PLA+-+Test&CS_003=7867724&CS_010=08018616
[20:24:56] <_methods> should be cheaper from igus i would think
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[20:25:36] <ssi> yeah might be
[20:25:45] <ssi> I had a little box of samples of igus stuff they sent me
[20:25:48] <ssi> and those were in there
[20:25:50] <_methods> yeah
[20:25:51] <XXCoder> _methods: http://www.mmsonline.com/articles/cutting-with-a-0001-inch-end-mill
[20:25:52] <Cromaglious> I picked up some 3/6 shank 0.008 and 0.025 end mills
[20:25:54] <_methods> i have one of those
[20:26:02] <Cromaglious> 3/16" shank
[20:26:14] <_methods> cool little samples
[20:26:19] <XXCoder> 0.0254 mm
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[20:26:28] <_methods> they sent me a cool sample kit
[20:26:34] <_methods> with screwdrivers and stuff
[20:26:36] <ssi> on like a 4" rail :)
[20:26:36] <ssi> it was about the size of a 12 or 15mm thk rail
[20:26:36] <ssi> and would be more than adequate for the laser
[20:26:36] <ssi> there's this stuff too, but it's not as nice
[20:26:36] <ssi> http://www.igus.com/wpck/3587/drylin_n?C=US&L=en
[20:26:36] <ssi> it's like drawer slides
[20:26:58] <_methods> yeah i used that stuff on my 3d printer
[20:27:01] <_methods> one of them
[20:27:35] <XXCoder> "100 millionths of an inch"
[20:28:47] <ssi> that's just a tenth :P
[20:28:59] <XXCoder> yeah
[20:29:32] <ssi> now that's not bad
[20:29:41] <XXCoder> "When machining is completed, the blocks are deburred by hand at a bench under a microscope. Burrs are gently removed with the ground tip of a bamboo chopstick or other type of wood. All edges must be dead sharp. No nicks or edge rollover is allowed. The edges can’t be touched by human hands at this point, Mr. Janzen says, because particles of skin left behind by contact can damage mating surfaces when the blocks are assembled."
[20:29:44] <ssi> $65.55 for a 2800mm rail with two trucks
[20:29:52] <ssi> for the igus plastig-bearing profile rails
[20:29:55] <XXCoder> pretty precise. way more precise what my work tend to be
[20:30:19] <ssi> oh wait I think that's just the rail
[20:30:22] <ssi> the trucks are $35 apiece
[20:30:46] <ssi> $254 for the rail and two trucks is what they're quoting me... weird
[20:31:08] <ssi> that's way too much
[20:31:13] <XXCoder> welcome to weird world of high precision. Keep the lights on. The Space Instrument Shop never goes dark because heat from ceiling lights affects ambient shop temperature.
[20:32:32] <Cromaglious> XXCoder, do they have air blenders on the heating ducts to keep the air exactly the right temp?
[20:32:44] <XXCoder> article dont say.
[20:32:58] <XXCoder> they however, say near lights is turned off quickly to keep temp even
[20:33:09] <XXCoder> look at my link above
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[20:40:32] <JT-Shop> now it's 150% snowing
[20:40:45] <XXCoder> so sky is 150% snow
[20:42:09] <ssi> all the weldment profiles for steel rect tube that they supply are way too heavy
[20:42:16] <ssi> sry they = solidworks
[20:43:19] <Swapper> would it be worth it to put linear ways on a Rf45 style mill ?
[20:43:23] <Swapper> even possible ?
[20:44:30] * Tom_itx shoves his pile of snow on JT-Shop's place
[20:44:41] <Cromaglious> hmm on a Rong Fu... Anything is possible. You'd probably need a another mill to do the milling for the conversion
[20:44:57] <Swapper> yea probably yea
[20:45:13] <ssi> lightest tube metal supermarket has is 1/8" wall, which'd probably be fine
[20:45:24] <ssi> 110" piece of 4x2x.125" is about $40
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[20:46:49] <_methods> ssi did you load the weldment profiles in solidworks?
[20:47:13] <ssi> yea
[20:47:23] <ssi> I know it's trivial to edit them, I'm just complaining :)
[20:47:33] <_methods> no under toolbox
[20:47:39] <ssi> yeah I know, I did
[20:47:39] <_methods> there are more profiles
[20:47:43] <_methods> oh ok
[20:47:47] <ssi> there's an ansi-inch, tube (rectangular) category
[20:47:55] <ssi> and TR4x2x0.1875 is the lightest one
[20:47:57] <_methods> yeah most people don't know about all that
[20:48:10] <ssi> without loading from toolbox there's like three profiles and they're all 1/4" Wall
[20:48:14] <_methods> they just think the ones defualt loade are it
[20:48:16] <_methods> yeah
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[20:53:11] <ssi> ugh... I have NO IDEA how to unset read-only permissions on the weldment profiles folder in windows
[20:53:40] <_methods> i just copy it
[20:53:44] <_methods> then make custom
[20:53:47] <ssi> I can't
[20:53:58] <ssi> sw won't save anything into that folder
[20:53:58] <_methods> copy that profile to your own folder
[20:54:04] <_methods> don't use that folder
[20:54:10] <ssi> if I do that, I don't know how to make it show up in the dropdowns
[20:54:16] <_methods> go into settings
[20:54:18] <CaptHindsight> think of them as templates and make copies
[20:54:21] <_methods> one sec
[20:54:59] <_methods> options>file locations
[20:55:15] <_methods> then in dropdown select weldment profiles
[20:55:23] <_methods> and add your custom folder to locations
[20:55:35] <ssi> aha thanks
[20:55:38] <_methods> np
[20:56:05] <Cromaglious> hmmm tool setting touch plate... Wondering how to make a wiper to hit the end mill when it comes in to set...
[20:56:14] <_methods> i personally save all those profiles from the main one to my custom folder
[20:56:20] <_methods> then move it between installations
[20:56:28] <Swapper> Connor: cant you use air?
[20:56:36] <ssi> yeah that's probabyl wise
[20:56:42] <ssi> I save my drawings in Dropbox
[20:56:43] <Connor> Huh?
[20:56:47] <ssi> I should add a profiles location there too
[20:56:51] <Swapper> hav seen renisaws that have air nozle
[20:56:53] <_methods> yeah
[20:57:04] <_methods> if you make a lot of custom profiles or hardware
[20:57:07] <_methods> or punch tools
[20:57:14] <_methods> iz gud idea
[20:57:35] <Swapper> Connor: meant Cromaglious
[20:57:41] <Swapper> sorry
[20:57:46] <Cromaglious> I wonder if G31 will do G31 Z-1 X-.5 and come down at an angle
[20:57:57] <_methods> since soliworks tends to be silly about takin in old toolbox/profile info
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[20:59:27] <Cromaglious> thinking about using a http://www.ebay.com/itm/NEW-CNC-Router-Mill-Z-Axis-Tool-Setting-Touch-Plate-works-w-Mach3-FREE-SHIP-/221636469672?pt=LH_DefaultDomain_0&hash=item339a9023a8
[21:00:07] <Swapper> Cromaglious: that only a pice of metal in a delrin pice
[21:00:21] <Cromaglious> wanna put a bit wiper on there so I could screw it to the table and have the machine do auto tool height
[21:00:24] <Swapper> you can make that from some bolts and a cutting board :)
[21:00:51] <Cromaglious> true... i have bolts and delrin... I need a wiper idea
[21:01:11] <CaptHindsight> Swapper: the dovetail ways are linear on the rongfu45's, you you mean change them out to some type of crossed roller bearing?
[21:01:28] <CaptHindsight> -you
[21:01:42] <Swapper> yea rails with blocks
[21:01:47] <Swapper> bearing blocks
[21:02:24] <CaptHindsight> Swapper: you can but why? Bridgeports use dovetail ways and last and work for decades
[21:02:51] <Swapper> less resitance, tighter ?
[21:03:14] <Swapper> or is it only any idea to use linear ways to get speed?
[21:03:40] <CaptHindsight> if I really wanted to get the most out my RongFu and the metal wasn't pure garbage, I'd just true them up and keep them lubed and adjusted
[21:03:59] <XXCoder> Alien with HULK powers lol http://gaspull.geeksaresexytech.netdna-cdn.com/wp-content/uploads/2015/02/life3.jpg
[21:04:17] <Swapper> not that easy to true ways upp is it ?
[21:04:22] <Cromaglious> hmm gotta see if the er11 nut is conductive enought
[21:04:32] <CaptHindsight> Swapper: depends on why they are out
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[21:04:56] <Swapper> mine is quite scratched at the bottom surface
[21:05:09] <Swapper> dont know what the effects of that is
[21:05:57] <_methods> increase lube reservoir lol
[21:06:07] <_methods> more scratches more lube lol
[21:06:19] <_methods> free upgrade
[21:06:33] <CaptHindsight> Swapper: have they been scraped?
[21:06:48] <Swapper> i do have a probably dumb question, the mill i have have 2 bolts holding the "gib" and it can be adjusted, then i have setscrews that pushes in on the gib, i guess these are only to lock the axis when manualy milling ?
[21:06:59] <Swapper> CaptHindsight: there are scrapemarks
[21:07:01] <CaptHindsight> http://s113340019.onlinehome.us/don/cnc2678/E4103394.JPG scraped ways
[21:07:16] <Swapper> they are scraped
[21:07:21] <CaptHindsight> http://mikalsmachinerepairandscraping.com/images2/100_0635-L.jpg
[21:08:05] <Swapper> i wish mine looked as good as the first picture :)
[21:08:11] <CaptHindsight> once you get the ways under 0.001" the next thing is going to be the spindle bearings
[21:08:22] * furrywolf can't imagine ever doing anything that precise by hand
[21:08:25] <CaptHindsight> and the twisting of the frame
[21:08:30] <Swapper> i got AC bearings
[21:08:37] <Swapper> changed the rollers
[21:09:00] <Swapper> runs fine at 7200rpm - 8k
[21:09:16] <Swapper> but dont know if i have the right preload or anytin :)
[21:09:48] <CaptHindsight> http://www.hossmachine.info/rf-45_clone.html
[21:10:19] <Swapper> mine is a tad bigger
[21:10:41] <Swapper> https://www.netauktion.se/uploads/extrabilder158876_center.jpg
[21:10:50] <Swapper> not mine but the same mill
[21:10:54] <Cromaglious> got it... I have a Stainless steel spring at X-5mm and Y-5mm of the tool set location. er11 nut comes down and hits spring, it keeps going down until contact at tool setter. set tool height, g0 Z -0.1, g0 X5mm Y5mm
[21:11:13] <Swapper> https://www.netauktion.se/uploads/extrabilder158879_large.jpg
[21:11:30] <Cromaglious> I mount the spring on a block of delrin
[21:11:36] <XXCoder> http://makezine.com/2015/03/03/x-carve-inventables-launches-new-line-of-cnc-machines/
[21:11:39] <XXCoder> wonder if any good
[21:12:17] <Swapper> looks a tad weak
[21:12:26] <Swapper> maybe as plasma cutter :)
[21:12:35] <XXCoder> wood its fine
[21:12:35] <CaptHindsight> just a power feed on the X, so I wouldn't bother with trying to change any bearings
[21:12:40] <Swapper> but shure, for engraving
[21:12:58] <Swapper> CaptHindsight: thats not my mill
[21:13:08] <Swapper> CaptHindsight: mine is all CNCed w
[21:13:36] <CaptHindsight> I still wouldn't bother
[21:13:50] <Swapper> its allready in there
[21:13:57] <Swapper> and it made a world of differeance
[21:14:28] <CaptHindsight> XXCoder: that junk has been around for a while
[21:14:36] <XXCoder> yeah 800 not worth it
[21:14:45] <XXCoder> since I already has everything but frame
[21:14:57] <XXCoder> the my previous link aliexpress frame should work fine
[21:15:05] <CaptHindsight> http://www.automationtechnologiesinc.com/products-page/cnc-router/cnc-mogul-machine
[21:15:40] <XXCoder> CaptHindsight: http://www.aliexpress.com/item/3040-CNC-router-milling-machine-mechanical-kit-CNC-aluminium-alloy-Frame-ball-screw-for-DIY-user/2051273724.html
[21:16:12] -!- adoyle88 [adoyle88!cef82b35@gateway/web/freenode/ip.206.248.43.53] has joined #linuxcnc
[21:17:34] <adoyle88> hello everyone. I've read through the suggested materials that you guys gave me yesterday. I've got the Debian Wheezy LinuxCNC image installed and I've been playing around with halcmd
[21:18:02] <CaptHindsight> XXCoder: they just don't know enough or care enough to properly fix the ballscrews
[21:18:21] <XXCoder> yeah but its cheap and good enough for me to fix it
[21:18:27] <adoyle88> I used encoder and the clock from siggen to succesfully count and add up a simulated position
[21:19:28] <adoyle88> now I want to use an input from my break out board to trigger the encoder count. I've got it hooked up, made a parport component but watching the pin value in halmeter shows that I'm not getting a signal
[21:20:42] <adoyle88> whats the best way to see if my parallel port is even working?
[21:22:50] <_methods> manually turn a pin on and off and measure voltage on it?
[21:23:04] <CaptHindsight> http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Parallel_Port_Tester
[21:23:12] <_methods> or that lol
[21:23:30] <adoyle88> that's awesome
[21:23:33] <CaptHindsight> but your idea using a meter is better :)
[21:23:47] <CaptHindsight> use both
[21:23:57] <CaptHindsight> it's just any easy way to toggle pins
[21:24:15] <CaptHindsight> and if the LPT driver isn't loaded it won't work
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[21:27:54] <adoyle88> By default, all of my inputs are green. That doesn't seem right to em
[21:27:56] <adoyle88> me*
[21:28:06] <JT-Shop> adoyle88, http://linuxcnc.org/docs/html/hal/basic_hal.html
[21:28:07] <adoyle88> how would I check if the LPT driver is installed?
[21:28:39] <adoyle88> I've read that a few times. And I've done the advanced tutorial as well
[21:29:17] <JT-Shop> load the parallel port driver in hal, if it does not bitch it is working
[21:29:36] <JT-Shop> adoyle88, did you read the part about adding your function to a thread?
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[21:30:10] <JT-Shop> http://linuxcnc.org/docs/html/hal/parallel_port.html
[21:30:33] <adoyle88_> I typed this one "loadrt hal_parport cfg="0"" and it did not complain
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[21:33:05] <JT-Shop> that's a 3rd of it
[21:34:33] <JT-Shop> seems the manual doesn't go into detail about adding the functions to a thread
[21:34:57] <JT-Shop> http://linuxcnc.org/docs/html/hal/parallel_port.html#_functions_a_id_sub_parport_functions_a
[21:35:52] <JT-Shop> so until you add the read and write functions to a thread the parallel port driver does nothing
[21:36:17] <XXCoder> CaptHindsight: besides wonky screw mount what ya think of that frame
[21:37:23] <adoyle88_> @JT-Shop I bet that is what's wrong
[21:37:51] <adoyle88_> the test showed that everything is fine. I'll go back to my hal stuff and add the read and write functions. Thanks for your help
[21:40:13] <CaptHindsight> XXCoder: beware of crunchy bearings
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[21:40:31] <XXCoder> indeed I plan to pull it all apart, clean oil then back together
[21:40:58] <XXCoder> I had to clean my sbr blocks too lol so crunchy
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[21:42:21] <Swapper> i have a bad sound from my z axis, its like tumping when going up and down
[21:42:28] <Swapper> wonder if its the bearings
[21:42:37] <XXCoder> http://hackaday.com/2015/03/02/the-hard-drive-midi-controller/
[21:42:42] <JT-Shop> stupid cell phone keeps giving me a winter weather warning... it's friggin blizzard out there... I can see that without the cell phones help
[21:42:46] <XXCoder> orrrr cnc controller
[21:42:53] <XXCoder> pediant?
[21:43:14] <XXCoder> no clicks though so harder
[21:43:46] <Swapper> yea detents is a must ?
[21:44:28] <XXCoder> detents?
[21:44:46] <Swapper> on the midi controller
[21:44:57] <Swapper> and using that as pendant for cnc
[21:45:04] <Swapper> would be not so good without detents
[21:45:05] <XXCoder> oh that clicky thing when turning
[21:45:24] <XXCoder> yea guess it wont work
[21:45:34] <XXCoder> it probably could spin which is very bad thing lol
[21:45:49] <Swapper> the weel keeps spining, and on a cnc that means the axies keeps spining = not good :)
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[21:45:59] <XXCoder> yep
[21:46:13] <Swapper> but real cool implementation
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[21:46:26] <Swapper> its like a quadrature encoder
[21:46:29] <Swapper> in those motors
[21:46:35] <XXCoder> wonder how precise it is
[21:46:40] <XXCoder> rotation encoder
[21:46:46] <Swapper> https://www.youtube.com/watch?v=bHgAbA7qq0w
[21:47:10] <CaptHindsight> Chinese bearings with random detents
[21:47:32] <XXCoder> 8 point dont sound accurate
[21:47:47] <XXCoder> does someone speak of how accurate it is?
[21:47:47] <CaptHindsight> they may be used for audible confirmation that they are in fact spinning
[21:48:11] <Swapper> its a BLDC motor isnt it ?
[21:48:20] <Swapper> but it can be used as a simple encoder
[21:48:26] <Swapper> but the precision cant be good
[21:48:39] <XXCoder> no idea if anyone spoke on video, no autocaptions and me deeefy lol
[21:48:41] <Swapper> its like using a RC plane BLDC as an encoder
[21:48:59] <adoyle88_> good news everyone! My encoder counter works with the parallel port signal
[21:49:08] <Swapper> XXCoder: no speaking
[21:49:13] <Swapper> only blip sounds
[21:49:20] <XXCoder> lol ok
[21:49:26] <XXCoder> adoyle88_: nice. for your bender?
[21:49:31] <Deejay> gn8
[21:50:14] <XXCoder> gonna get ready for work later
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[21:50:25] <adoyle88_> yeah. It's for the rotary encoder we are putting on the bend axis to bend to a certain degree
[21:51:02] <Swapper> gn8
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[22:04:32] <furrywolf> argh! it's too hot outside to get anything done.
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[22:05:49] <furrywolf> I was working on caulking windows, but it's flat out too hot to be on a ladder in the sun.
[22:06:35] <furrywolf> ... I don't know how hot. my weather station seems to have stopped updating at 1pm. wtf.
[22:08:16] <CaptHindsight> will trade furrywolf
[22:08:39] <CaptHindsight> way up to 21F here
[22:08:46] <furrywolf> I'd guess it's close to 70F. :(
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[22:12:46] -!- HSD [HSD!~user@c-24-10-227-17.hsd1.ut.comcast.net] has joined #linuxcnc
[22:16:33] <HSD> anyone know what the fix was for the USB issue on 2.6.7? I've tried 3 different computers and it won't boot. Keeps complaining about not being able to find/mount root filesystem. Which makes sense because I'm trying to boot from USB stick.
[22:17:14] <HSD> but what is strange is that the release entry claims to have fixed that issue
[22:21:00] <PCW> Hmm unless its been broken recently USB booting works fine (and was only broken on newer Baytrail MBs)
[22:21:38] <PCW> maybe a problem with the image?
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[22:24:49] <HSD> md5 checksum matches what is on the website
[22:25:01] <HSD> I tried writing it to the flash drive twice
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[22:26:17] <PCW> What CPU? I had trouble with older CPUs
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[22:26:28] <HSD> I'm guessing that www.linuxcnc.org/binary.hybrid.iso is 2.6.7
[22:26:33] <HSD> ah, could be.
[22:26:38] <HSD> Core2 Duo
[22:26:47] <HSD> and the other was a Core 2
[22:27:54] <PCW> I dont think they update the ISO for every minor version change so its probably still 2.6.5 or somthing
[22:28:04] <HSD> ah.
[22:28:05] <HSD> ok
[22:28:11] <JT-Shop> HSD, did you "copy" the iso or "burn" the iso?
[22:28:22] <HSD> copy via dd
[22:28:32] <HSD> to usb stick
[22:28:48] <HSD> it loads the kernel and initrd.img
[22:28:50] <JT-Shop> dd?
[22:29:06] <HSD> but when it tries to switch root from ramdisk, it crashes
[22:29:10] <HSD> yeah. dd
[22:29:19] <JT-Shop> what is dd?
[22:29:32] -!- adb has quit [Ping timeout: 252 seconds]
[22:29:35] <HSD> raw disk dump
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[22:30:42] <cradek> HSD: as far as I know there's no longer a usb related problem
[22:30:48] <JT-Shop> http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Hybrid_Iso
[22:31:05] <cradek> I can't explain your results. I've booted it on a large number of random machines.
[22:31:34] <HSD> :S
[22:31:35] <HSD> ok.
[22:31:39] <HSD> I'll try another
[22:31:43] <cradek> maybe your usb stick is bogus
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[22:31:53] <HSD> could be. I'll try a different one first.
[22:32:01] <JT-Shop> did you follow the instructions for writing the image to the usb?
[22:32:08] <HSD> PNY attache 4G
[22:32:46] <HSD> Yeah. dd if=binary.hybrid.iso of=/dev/sdd conv=fsync
[22:32:56] <cradek> > Again, be careful, DD is a orbital nuclear laser of power.
[22:32:58] <JT-Shop> ok, just checking
[22:33:01] <cradek> haha who writes these things
[22:33:06] <HSD> hahaha
[22:33:29] <HSD> use dd quite a bit. Got to be careful. :)
[22:34:18] <HSD> let me try another usb stick
[22:34:28] <furrywolf> dd is oooooold. it'd have a different argument structure if written today.
[22:34:30] <HSD> if that doesn't work, another computer. 4th time a charm? :)
[22:34:49] <JT-Shop> did you make the usb port bootable in the computer
[22:35:43] * JT-Shop goes to take the dog out in the blizzard to write her name in the snow
[22:36:02] <furrywolf> hrmm. I don't know what's wrong with my weather station. the logs show it's working, but it's not generating the html files.
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[22:40:57] <_methods> unetbootin
[22:42:12] <PCW> I was going to try and clone a SSD with dd but got so confused by the uuid stuff I was never convinced could copy in the right direction
[22:46:21] <_methods> i go into cold sweats every time i type dd
[22:46:46] <furrywolf> grrr. I hope it didn't die. the software doesn't seem to be getting any data, but the display seems to be functioning normally...
[22:46:46] <_methods> just seeing those 2 letters together makes me want to drink heavily lol
[22:50:23] <furrywolf> dd addles laddie's embedded befuddlement, bidding caddish bladders?
[22:50:34] <furrywolf> bah, I'm feeling to useful to think hard enough to actually make that work. :P
[22:50:36] <furrywolf> s/to/too
[22:50:44] * furrywolf goes back to poking at weather station
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[22:52:22] <furrywolf> I guess I need to get my 'scope out and check if the serial data looks good... since the display unit thinks its working, and the usb adapter thinks its working, the problem could be the rs232 isolator between the two...
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[22:55:02] <furrywolf> the weather station, for reasons known only to some engineer that figured out how to save half a cent, ties one of the serial data lines to chasis ground, floating the whole unit at -15V. this requires optoisolation, as the power supply ground is shared with the actual serial ground...
[22:55:45] <furrywolf> so if you simply plug it all in, it shorts the serial port status line to ground, and doesn't work.
[22:55:46] <JT-Shop> HSD, is the Core 2 Duo a mac book?
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[22:56:30] <JT-Shop> nevermind dunno why mac book showed up in the google search
[22:56:54] <HSD> heh.. nope
[22:57:06] <HSD> I even tried it on a newer machine
[22:57:08] <HSD> all failed.
[22:57:16] <HSD> I'm trying out the "use another usb stick" method
[22:58:03] <furrywolf> play around with bios settings... I've had some label the exact same usb thumbdrive as a usb thumbdrive, a usb hard drive, or a usb cdrom...
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[22:59:59] <furrywolf> legacy usb support probably needs to be on, too
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[23:05:21] * JT-Shop wonders what rpm to drill a 1/4" hole in a 12" carbon gouging rod...
[23:06:02] <furrywolf> any rpm you want?
[23:06:16] <JT-Shop> ok
[23:07:07] <furrywolf> what's the rod diameter? mine are about 1/4", so putting a 1/4" hole in one would be a bad idea...
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[23:07:38] <JT-Shop> 5/8"
[23:07:43] <furrywolf> big ones.
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[23:08:54] <furrywolf> you'd need, what, a thousand amps to run one of those? heh
[23:12:52] <JT-Shop> heh making a pyrometer
[23:13:05] <JT-Shop> looks like I need to support the rod to drill it
[23:13:31] <furrywolf> run a 5/8 ball-nose endmill through a block of wood
[23:14:30] <JT-Shop> two half blocks?
[23:15:19] <furrywolf> depends on how well you want to support it. lol
[23:15:32] <furrywolf> I was thinking just across the top of a block, making a semicircular groove
[23:15:36] <JT-Shop> I don't want to break another one in half
[23:15:38] <ssi> http://xkcd.com
[23:15:43] <ssi> D:
[23:15:48] <furrywolf> you could also drill a 5/8" hole through a block, then just drill through the wood into the rod
[23:17:00] <JT-Shop> I'm pretty sure I don't have a 12" long 5/8's drill bit but I might be wrong
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[23:18:26] <furrywolf> you only need to support where you're drilling, not the whole rod...
[23:18:55] <furrywolf> drill through a piece of 4x4. should be plenty of support for a 1/4" hole.
[23:19:42] amnesic_away is now known as amnesic
[23:20:52] <HSD> well I'll be. It was the USB stick. Different one boots just fine
[23:20:58] <HSD> go figure
[23:21:01] <JT-Shop> I don't think a 4x4 will fit in the lathe
[23:22:39] <rob_h> JT-Shop, i always find the dormer calulator pritty spot on for feeds and speeds.. and number of holes said
[23:22:50] <rob_h> http://selector.dormertools.com/web/enu/en-us/inch
[23:23:04] <JT-Shop> thanks rob_h
[23:23:44] <rob_h> you can also play with RPM and feed and change tool life... walter one is much better but not as quick to use
[23:24:16] <JT-Shop> I'm just drilling these on the old manual Samson lathe... I hope
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[23:26:08] <JT-Shop> http://www.alloyavenue.com/vb/showthread.php?10142-Pyrometers%97How-to-Make-Them-and-Use-Them
[23:26:43] <rob_h> this your new hobby
[23:26:45] <rob_h> melting stuff
[23:26:52] <JT-Shop> hehe yea
[23:26:59] <rob_h> nice
[23:27:03] <JT-Shop> keeps you warm in the winter
[23:27:06] <rob_h> what doing making castings?
[23:27:18] <JT-Shop> sand and lost pla I hope
[23:27:19] <rob_h> yea like working in a molding shop.. good for winter job.. killer in the summer
[23:27:48] <JT-Shop> this is just for entertainment
[23:27:55] <rob_h> i see
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[23:28:12] <JT-Shop> http://gnipsel.com/images/casting/
[23:28:19] <furrywolf> drilling rough holes in wood blocks is what a drill press or a hand drill is for, not a lathe. :P
[23:29:00] <Jymmm> laser works too
[23:29:12] <Jymmm> square holes
[23:29:20] <rob_h> who had to empty that big can ;)
[23:29:35] <JT-Shop> lol, I'm sure I ate the popcorn
[23:29:45] <JT-Shop> a popcorn tin
[23:29:51] <rob_h> aah is that what it is
[23:29:59] <furrywolf> that forum seems to have some very broken css. it's rendering the text quite a bit wider than the boxes it's displayed in, clipped. so you only see the first half of each line.
[23:30:02] <rob_h> a good few movies later then
[23:30:08] <JT-Shop> yea, that would be a huge can of soup lol
[23:30:24] <JT-Shop> yea
[23:30:26] <rob_h> well i do hear you americans like things bigger than the rest of us
[23:31:29] <JT-Shop> probably a present, I'm sure me and the wife would never buy something like that... she gets stuff like that from work
[23:32:01] <JT-Shop> to make it more fun the carbon rod is a bit oversize
[23:32:48] <furrywolf> put it in a piece of pipe, center it, pour molten aluminum around it...
[23:33:16] <furrywolf> melt it off when you're done
[23:37:54] * JT-Shop just needs a 16mm reamer...
[23:39:20] <rob_h> metric
[23:41:29] <SpeedEvil> 11/16ths reamer, and a file?
[23:42:15] <JT-Shop> file a 12" deep hole?
[23:42:47] <JT-Shop> the carbon rod is 0.630" so a 16mm would be perfect... I have a 12mm and a 20mm
[23:43:14] <ssi> mcmaster
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[23:43:56] <ssi> http://www.mcmaster.com/#8851a32/=w62t2o
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[23:44:53] <rob_h> have to bore it ;)
[23:45:01] <JT-Shop> hmm, I think I can saw the pvc tube in half and use that
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[23:45:35] <SpeedEvil> Why not just ,achine down the rod to 12mm
[23:45:47] <ssi> machining carbon suuuuucks
[23:46:01] <SpeedEvil> JT-Shop: I was meaning file the reamer, it was not very serious
[23:46:20] <ds3> sucks in which way? blackness or abrassiveness?
[23:46:30] <SpeedEvil> I missed what this rod is for
[23:46:42] <ssi> tool-dullingness
[23:46:49] <SpeedEvil> Is there a good reason that you're not using a carbon gouging electrode with the nice existing copper coating?
[23:47:57] <ds3> wonder if it can be machined with a stream of liquid oxygen
[23:48:10] <JT-Shop> SpeedEvil, http://www.alloyavenue.com/vb/showthread.php?10142-Pyrometers%97How-to-Make-Them-and-Use-Them
[23:49:00] <JT-Shop> the PVC pipe reamed to 5/8" and cut in half length wise looks like it will provide enough support with a few hose clamps on it
[23:49:10] <JT-Shop> and less pressure on the bit lol
[23:49:31] * JT-Shop grabs the snow shovel and fights his way to the house... goodnight
[23:50:14] <SpeedEvil> ah
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[23:53:34] <SpeedEvil> Coincidentally, I happen to have http://www.aliexpress.com/store/product/1pc-lot-D6-a-0-15-d-1-L-33http://www.aliexpress.com/store/product/1pc-lot-D6-a-0-15-d-1-L-330-tungsten-silicon-carbide-rod-FREE-shipping/1190255_1839000620.html0-tungsten-silicon-carbide-rod-FREE-shipping/1190255_1839000620.html
[23:53:39] <SpeedEvil> on my browser tab
[23:53:40] <SpeedEvil> http://www.aliexpress.com/store/product/1pc-lot-D6-a-0-15-d-1-L-330-tungsten-silicon-carbide-rod-FREE-shipping/1190255_1839000620.html
[23:53:42] <SpeedEvil> ratehr
[23:54:08] <SpeedEvil> 6mm diameter silicon carbide tube
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